CERN Bulletin

Nos 41 & 42 – 12 & 19 October 2011 Upstream from OPERA: extreme Science driving facilities for attention to detail particle physics his week, CERN played host to the T10th ICFA (International Commit- tee for Future Accelerators) seminar, which brought together some 200 scientists, government agency rep- resentatives and lab directors from around the world to take the pulse of our field. ICFA seminars take place every three years, and this time the emphasis was on science as the driv- ing force for facilities. The theme of this year’s seminar could not have been more timely.

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News Upstream of OPERA: extreme attention to detail 1 A word from the DG LHC Report: Steady as she goes 3 No mission is impossible for LHCb 4 In this issue Touching base with OPERA 5 Let the flowers grow… 6 “Light” might be the answer 7 CERN School of Physics travels to Romania 8 At the heart of CERN for one night 9 Playing soon at a planetarium near you 10 Underground installations of the CERN Neutrinos to Gran Sasso (CNGS) project. Indian President visits CERN 11 Luis Álvarez-Gaumé to speak at El Ser Creativo First ingredient: a Two weeks ago, at a seminar held at CERN, the OPERA 2011 11 stable beam collaboration revealed their astonishing observation: neutrinos A Chat with James Watson 11 might move faster than light. The finding is currently under An exact “Tour de France” CERN produces neu- scrutiny in the scientific community. While the result downstream passes through CERN 12 trinos by sending a Did we build the LHC just to find the Higgs? 13 beam of protons to at Gran Sasso speaks for itself, upstream at CERN things are no Security Bingo 14 hit a target. The colli- less intriguing, with high-tech GPS systems, novel techniques Official news 15 sions produce a sec- for accurately measuring the time, and unique ways keeping the Take note 15 ondary beam, which initial particle beam stable. Take away one ingredient and the Training Course 19 mostly consists of External meeting 19 pions and kaons that accuracy needed for the final measurement is spoiled. Seminars 20 decay in flight within an evacuated tunnel. Their decay prod- not decay, while the resulting muons are ucts are muons and muon-neutrinos. An absorbed by rock within a kilometre and Published by: absorber stops the pions and kaons that do the muon-neutrinos continue through the The European Organization for Nuclear Research - CERN earth’s crust towards Gran Sasso. “In order to 1211 Geneva 23, Switzerland - Tel. + 41 22 767 35 86 provide OPERA with a very stable neutrino Printed by: CERN Printshop © 2010 CERN - ISSN: Printed version: 2077-950X (Continued on page 2) Electronic version: 2077-9518

www.cern.ch/bulletin Upstream of OPERA: extreme attention to detail (Continued from page 1) beam, it is crucial that the primary proton and the cables that were to be installed time resolution would provide a valuable beam first hit the target in a very precise at CERN and in Gran Sasso were taken to cross-check. In the absence of this option, way. Any change in its alignment, as well as the Swiss Metrology Institute (METAS) for muons remain very good indicators of the any change in the subsequent focusing ele- accurate calibration. Later on, after OPERA properties of the neutrino beam we send ments, is reflected in changes to the muon researchers found their neutrino velocity towards Gran Sasso.” beam and therefore to the neutrino beam,” result, direct independent measurements explains Edda Gschwendtner, the physicist were performed by CERN’s Pablo Alvarez “Many ideas are currently being exchanged in charge of the CERN Neutrinos to Gran and experts from the German Institute of within OPERA and CERN, but I think a better Sasso (CNGS) secondary beam. The flux and Metrology (PTB) in order to cross-check the understanding of the time structure of the profile of the muons, the ‘sister particles‘ of time calibration on the two sites. “In addi- neutrino beam at its source would contrib- the neutrinos, are continuously monitored tion to all this, we installed caesium atomic ute to the quality of the measurements,” and the beam is stopped automatically clocks on both sides of the neutrino beam,” concludes Pablo Alvarez. by an interlock system if a deviation from explains Javier Serrano. “These clocks are the nominal values is detected. Should an very stable and can be used to provide an Are you wondering when we will have a anomaly in the beam persist, a team of additional check of the GPS time transfer second measurement of the neutrino’s time experts is on stand-by around the clock to and to increase its precision.” of flight? Dear old Albert might have told us: intervene and fix the problems. “Relatively soon”. The CERN timing experts, in collaboration CERN Bulletin Second ingredient: time measurements with the OPERA team, provided a very accu- rate time distribution of the primary proton Watch the animation of the CERN to Gran Any measurement of velocity implies a beam, which is assumed to correspond to Sasso neutrino beam: calculation of the time needed to cover the profile of the neutrino beam arrival the given distance. Beams Department time. This plays a crucial role in the off-line http://cdsweb.cern.ch/record/986729 engineers Javier Serrano and Pablo Alvarez, calculation of the neutrinos’ time of flight. in collaboration with OPERA research- ers, have been performing OPERA’s time Last but not least: positioning measurements with outstanding accuracy. Did you “We measure the time using very accurate CERN surveyors also used GPS receivers to know? GPS receivers,” says Javier. “We provide the provide an accurate position for the target experiment with a time measurement made and the BCT, the points at the origin of the between the Beam Current Transformer time measurement. On the Italian side, Did you say “GPS”? (BCT) – an instrument that monitors the OPERA researchers worked collaboration How can experts reach such a high intensity profile over time of the primary with Mattia Crespi’s geodesy group from accuracy using GPS receivers? Are proton beam and is positioned just before the University of Rome to measure the posi- they the same instruments as the ones the target – and a point just before the tion of the centre of the detector using both we have in our cars? Not exactly… experiment’s electronics.” Researchers from GPS and other standard topographical tech- Standard GPS systems installed in the OPERA team have measured other pos- niques, linking the surface GPS points to the cars typically use only one of the two sible contributions to the time of flight of underground cavern. This involved stop- or three available signals emitted by the neutrinos, as well as the delay calibra- ping the traffic on one side of the motorway the global satellite system – each one tions not included by CERN’s calculations. from which the Gran Sasso Laboratory with a different encoding. In this way, caverns are accessed. “We provided OPERA standard GPS receivers are able to At Gran Sasso, the GPS time receiver was with the co-ordinates of the target here at provide co-ordinates of a given point positioned at the surface. An 8km optical CERN, which were transformed into a global within about 10 metres. On the other fibre linked that reference point with the co-ordinate system (ETRF2000). Using this hand, the GPS instruments used by heart of the detector where the neutrinos data, the OPERA team and the Rome group surveyors and time experts can analyse arrive. Special techniques were applied were able to combine measurements from all three signals as well as the carrier in order to accurately measure the length the two sides to accurately calculate their waves themselves, and can therefore of the optical fibre – and therefore the distance. The determination of the beam reach a much higher accuracy, down associated delay – for the overall timing line elements at CERN came with an overall to a few millimetres and nanoseconds. calibration. “The optical fibre length cali- uncertainty of 2 cm as it was based not only “In addition, the experts perform their bration was a limiting factor in previous on GPS data but also, for the underground measurements over a long period – up experiments that attempted to perform points which cannot be measured by GPS, to 24 hours for precise position deter- measurements of the particles’ time-of- from precise measurements performed mination– and then apply statistical flight,” continues Javier Serrano. at the time of the LEP construction,” says corrections to get a very precise result,” Dominique Missiaen, Head of the Survey says Mark Jones from the Survey After an initial phase in which the synchro- section at CERN. Section at CERN. nisation accuracy with CERN needed by OPERA for their neutrino oscillation meas- Next steps urements was at the level of 100 ns, CERN and OPERA experts proposed reaching for Checks, checks and even further checks nanosecond accuracy. “This opened the way – this is the approach being taken by the to a real time-of-flight measurement. From CERN experts. “We know the beam very our experience, we knew that the metrology well, but in this context it is important to labs around the world use time-measure- carefully study all details of the beam again. ment techniques that can reach an accuracy This applies to the muon beam in par- of 1 ns,” says Javier Serrano. No sooner said ticular,” says Edda Gschwendtner. “Ideally, than done. The GPS receivers, the antennas a neutrino near-detector with excellent 2 – 12 & 19.10.2011 LHC Report: Steady as she goes

here is a little Despite the usual ups and downs, over the last fortnight the LHC has succeeded in delivering of the order over three weeks of 500 inverse picobarns a week. The machine parameters are now at 1380 bunches, 1.3x1011 protons per to the end of this T bunch, and using the smallest possible beam sizes that the SPS can currently produce. These settings, year’s proton run and the operations team together with the 1 m ß* squeeze, have allowed ATLAS and CMS to receive over 10 inverse picobarns an is trying to squeeze hour at the start of a fill. in a number of special runs for dedicated studies. These include LHCb has also passed the 1 inverse testing the machine with a beam with femtobarn mark, warranting a a 25 ns bunch spacing (which would small celebration in the CERN open the way to doubling the number Control Centre. of bunches), and performing a high “pile-up” run in which single bunches Preparation for the LHC ion run is with maximum intensity are collided. This in full swing. Intense ion beams would allow ATLAS and CMS to probe the were successfully produced and effects of an exceptionally high number accelerated up to the LHC injection of collisions per bunch crossing on their energy through the LINAC3, LEIR, detectors. Currently, at the start of a fill, PS, and SPS. ATLAS and CMS are seeing a peak of 20 events per bunch crossing. With an Mike Lamont for the LHC Team increased bunch current and an even lower ß* this figure could go even higher. “We’ll miss you.” The Tevatron was given a final salute on the LHC1 screen on 30 September 2011, the day of its shutdown.

Upstream of OPERA: extreme attention to detail (Continued from page 2)

(Continued from page 1) Science driving facilities for particle physics Do you have ideas, questions and/or suggestions? With austerity the global norm, it is engagement with particle physics are The CERN Press Office and CERN pub- more important than ever for science growing, and that’s why each partici- lications such as The Bulletin are not in to point the way to the facilities we pant at the ICFA seminar received a new a position to judge any new theories need, and for the global community ICFA publication, Beacons of Discovery, explaining OPERA’s result. However, to ensure that those facilities are making the case for particle physics as a the peer-review process is a very well planned at the global level. global endeavour. established method that the scientific The LHC is already a machine for the The ICFA seminar has a very special community has put in place to discuss world, and although CERN’s Member place in the particle physics conference theories, ideas and results. If you think States have carried the bulk of the circuit. Coming around only once every your ideas or work are worth further cost, it would not have been possible three years and bringing together lead- exploration, we advise you to follow without contributions from around ers representing every facet of the field, the standard procedure used by scien- the globe. In the US, Fermilab’s focus the seminar provides a unique oppor- tists and submit your work through the has moved away from the high-energy tunity to gauge the state of particle established channels (each publication frontier to the intensity frontier, which physics globally, and to get a feeling for has its own set of rules, so please con- is every bit as important for all of us. regional trends. This time, the trend was sult the relevant web sites). While in Japan, the major labs, includ- clear: always collaborative, the time has ing KEK, are still recovering from the come for particle physics to coordinate earthquake, but it’s safe to assume globally. that they will soon resume their lead- Whether it be for developing new ing position in their traditional areas science-led machines for the frontiers of strength. of our field, ensuring that the techni- I have singled out these three labs for cal knowledge generated in pursuit of a mention simply because one of them our science finds its way to people who hosted the seminar, while the Direc- can make it work in other areas, or for tors of the other two are incoming and enthusing the upcoming generation, outgoing ICFA Chairs, but the whole we’re better off together. This was the point of the ICFA seminar is to show clear message from this week’s ICFA the continuity and diversity of our seminar. field. Around the world, interest in and Rolf Heuer

12 & 19.10.2011 – 3 No mission is impossible for LHCb

HCb is the CERN Time: 01:37:51 am, 3 October, 2011. The LHC is producing million experiment spe- collisions per second in its detectors. But at that time, one cialising in the Did you L collision is “more special” than the others in the LHCb detector: study of b-quarks, whose properties and the milestone of 1 inverse femtobarn of luminosity is surpassed. know? behaviour are likely What was considered as “mission impossible” at the beginning of to provide physicists the year is now “mission accomplished”. with important hints LHCb film shortlisted by Japan Prize Festival on several physics processes, including objective. The excellent performance of “LHCb - A Beauty Experiment”, a short some new physics. “One inverse femtobarn the LHC, several months of hard work and a documentary on LHCb, has been short- of luminosity corresponds to about seventy new strategy changed the situation. “Early listed by the NHK Japan Prize Festival. billion b-quark pairs decayed in the LHCb this year, at the Chamonix meeting, we Every year, the festival awards the very detector,” explains Pierluigi Campana, LHCb discussed applying luminosity leveling sys- best in global educational media. The Spokesperson. “Such high statistics will tematically – something which we had only film was produced by the CERN Visual allow us to reach an unprecedented accu- proposed and tried a few times in 2010. By Media Office. Visit Youtube to see the racy in most of the core physics processes slightly displacing the colliding beams with film in different resolutions or with that we study.” respect to each other at the LHCb interac- subtitles at http://www.youtube.com/ tion point and continually reducing the watch?v=rsmBMuTFdkA&feature=pla At the beginning of this year, such a high separation, LHCb can run flat at the highest yer_embedded. luminosity seemed a very challenging luminosity for entire fills while preserving

the collision rate for ATLAS and CMS,” says Richard Jacobsson, LHCb run coordinator.

Although sometimes theory differs from practice, thanks to the tight collaboration between the LHC and LHCb, this time the idea worked and the LHCb experiment has been running at full steam since then. “The huge amount of data collected so far will allow us to significantly increase the accuracy of our results. It also increases the statistics of various rare decays and makes their study possible. Moreover, we can now think of exploring new avenues and processes that we never imagined having access to so early,” says Pierluigi Campana.

The new explorations could include studies of time-dependent charge-parity violation

in the Bs system that could be hiding still Mike Lamont (Operations Group Leader), Pierluigi Campana (LHCb Spokesperson), Steve unknown processes, and the measure- Myers (Director for Accelerators and Technology), and Paul Collier (Head of the Beams ment of the γ CKM angle whose value Department) celebrate the LHCb milestone. could provide a better knowledge of the quark interactions as well as hints of new physics. “The results we presented at the summer conferences were based on a set of data that was only one third of what we have now. We expect to have extended our knowledge about a variety of physics phenomena, some of which might be unex- pected, in time for the winter conferences at the beginning of next year,” says Pierluigi Campana.

The LHCb detector will continue to collect data until the LHC switches from protons to ions in November. It will also be fully opera- tional during the two-day proton-ion run, scheduled a few weeks from now.

CERN Bulletin

The LHC1 screen congratulates LHCb for its new record. 4 – 12 & 19.10.2011 Touching base with OPERA

ccording to the Three seminars – at CERN, at Gran Sasso and in Japan – and an tation of necessary improvements, which OPERA strategy, article calling for the scrutiny of the scientific community: the cannot be fully evaluated at this time. Athe results of OPERA Collaboration opened its research publicly. In addition the measurements LVD are in the hands of to huge press coverage, this triggered welcome reactions from the scientific com- colleagues around the world, many of whom will attempt to The LVD Collaboration has a great interest munity and, as for any independently interpret and reproduce the measurement. in the issue raised by the recent OPERA other scientific result, OPERA’s Spokesperson touches base with the Bulletin. measurement. The experiment, designed several months will to detect gravitational stellar collapses, can be needed before other groups will be able Borexino: also detect neutrinos from the CERN beam. to perform an independent measurement. However, the Collaboration has to evaluate In the meantime, the OPERA Collaboration Borexino is installed in the same LNGS carefully if it can contribute a significant is dealing with an avalanche of emails underground hall (Hall C), about 20 metres result with their detector as it is, or if it has to from the scientific community, members upstream of the OPERA experiment with change, modify or add some detector parts. of the general public, and the press. “We respect to the neutrino flight direction from are replying to many interesting sugges- CERN. The volume of the Borexino detector T2K tions,” says Antonio Ereditato, Professor is larger than that of OPERA, and Borexino of Particle Physics at Bern University and is able to collect a larger number of events Based on an initial assessment of the experi- Spokesperson of the OPERA Collaboration. produced by CERN neutrinos. ment’s current capability, T2K cannot make “Given the result, we were of course expect- any definitive statement to verify the OPERA ing a large response. We are evaluating all The main goal of the Borexino experiment measurement of the speed of neutrino. The the input. Some of the questions concern is the study of solar neutrinos and geoneu- Collaboration will assess the possibility of points that were not explicitly shown during trinos. At present, the experiment is not improving their experimental sensitivity in the seminars but will be described in the equipped with the special timing devices order to cross-check the OPERA anomaly final version of the scientific paper.” required to measure the neutrino time-of- in the future. Such a measurement with an flight from CERN with the accuracy required improved system, however, could take a So far, the main reactions have focused on to cross-check the OPERA results, which while to achieve. the Earth’s rotational effects, subtle general would be possible only by installing new relativity issues, the technology used to timing devices. MINOS measure time and distance, and the analy- sis methods. “After carefully considering all After preliminary discussions, the Borexino The MINOS Collaboration is planning to these points, we still have no indication of Collaboration has expressed interest in improve its measurement of the neutrino any large systematic effect that we could performing an independent measurement time-of-flight since its last result in 2007, with have overlooked. However, we are just at the to cross-check the result from OPERA. How- better-controlled systematics and about 10 beginning of the screening process by the ever, the discussion has barely started and times more data. The first update should be community and we will have to wait longer,” is still ongoing. A decision has not been yet in about 6 months. There will be a further says Ereditato. been made. improvement (which was already planned) for the MINOS+ experiment, starting in 2013, The investigation is just beginning. The In an optimistic scenario, the Collaboration which will take very high statistics, and higher OPERA Collaboration is acquiring more could be in a position to collect data by the energy data. This should give a total error of statistics to improve the quality of the start of the beam run in February 2012, but 5-10 ns on the final measurement. measurement. Others will do the same in the this depends on the successful implemen- CERN Bulletin coming months. “Even if another experiment confirms our result, it will not yet be a discovery but proof that the explana- tion of such an effect could not be trivial,” says Antonio Ereditato. “We will keep studying the performance of our detector, we will keep looking carefully at the tiny details within the analysis, and we will keep collaborating with colleagues from other experiments. Even if neutrinos seem to travel faster than light, Science must not rush as the understanding of Nature is in no way a trivial exercise.”

The scientific response

The Bulletin has contacted some of the experiments around the world that are likely to reproduce the OPERA’s meas- urement. Here follows their statements:

The CERN Main Auditorium was crowded as OPERA Physics co-ordinator Dario Autiero presented the results of their research (23 September 2011).

12 & 19.10.2011 – 5 Let the flowers grow…

physics The Environmental part of CERN Safety policy is represented by Laboratory a flower whose petals are the various domains of its application. Aoccupying a ter- The Environment Services section within the Occupational Health ritory of the size of a small village, with and Safety and Environmental Protection Unit is in charge of sites scattered across monitoring the impact of the Laboratory on the environment. an even larger area, You are called on to make every effort to reduce this impact as has a considerable much as reasonably achievable. Read why and how… potential impact on the environment. Energy and water con- against ionizing radiation. This is accom- sumption, waste management... these are plished by members of the Environment all aspects of the same problem or, in the section in close collaboration with the representation, petals of the same flower. Radiation Protection Group of the HSE Unit. Each one should be carefully studied and “At CERN, radiological issues are integrated dealt with. into the general policy that deals with all environment-related issues,” explains Pavol The nine members of the Environment Vojtyla, environmental radiation protection Services section deal with matters that expert and a member of the section. “About concern these and other aspects of the two hundred and forty measuring stations help reduce CERN’s environmental impact CERN’s policy for the protection of the and sampling points cover the CERN sites is strongly encouraged. This can easily be environment. “Last year we identified eleven and beyond. They constantly provide infor- done by reading and following the HSE domains within the policy and that cover mation about the radiation levels and look Advice page. Also, if you are starting a new the various activities of the Laboratory,” for possible man-made radioactive sub- project or you are planning an equipment explains Sonja Kleiner, Section Leader. “In stances. We use very sensitive instruments upgrade, it is good practice to contact the order to help Department Leaders, Safety because the maximum radiation levels we Environment Services Section from the Officers and members of personnel to monitor are extremely low. We also analyse very beginning. This would help you make reduce the impact of their activities on the several thousands of samples in our labora- sure that the impact of your activity on the environment we provide them with pro- tories every year. These include, for example, environment is as low as reasonably achiev- fessional advice and useful best practices. filters from ventilation monitoring stations able, that is precisely the objective of CERN’s We also continuously monitor the entire and samples of water continuously released Safety policy for environmental aspects. Do CERN area and call on expert intervention from the sites.” your part and let the flower grow! if needed.” As any other flower, CERN’s Safety policy for CERN Bulletin On top of eleven basic domains is the pro- environmental aspects requires care. Active tection of the public and the environment participation of all members of personnel to

6 – 12 & 19.10.2011 “Light” might be the answer

ignals, perhaps Higgs or not Higgs, light or heavy? Light Higgs, says Ignatios would basically exclude supersymmetry, signs, but no Antoniadis of CERN’s Theory Group. The particle is still hiding at least that which we could theoretically expect to discover at the LHC,” explains SHiggs boson but there are some signals that could potentially point to a yet… While the Antoniadis. If supersymmetric particles experimentalists small-mass Higgs boson. Staying in the realm of hypothesis, how are not found, extra dimensions could continue to collect would such a Higgs shape the Universe? How would it impact become a very strong alternative scenario and analyse precious existing theories such as supersymmetry and extra dimensions? to describe what is out there in the Universe. data, theorists are And finally, how could superluminal neutrinos fit into all this? “Extra dimensions do not constrain the mass evaluating the vari- of the Higgs. There are extra dimension ous theoretical models and monitoring the a few more months for the Higgs, we will models that remain consistent without a likelihood of theirs being the right one. “So have to wait much longer than this to clarify Higgs boson at all,” he continues. far, the experimental data collected by the whether supersymmetric particles exist or experiments strongly confirm what we were not. “Although the data seems to be nar- Extra dimensions recently came into the expecting from the Standard Model,” says rowing the mass region in which supersym- limelight in the discussions that followed Ignatios Antoniadis. “Several parameters metric particles could lie, technically speak- OPERA’s announcement. “OPERA’s results that, according to the theory, are strongly ing we cannot yet exclude their existence,” indicate a violation of the absolute limit of linked to the Higgs boson have now been confirms Ignatios Antoniadis. “I believe that, the speed of light. Existing experimental measured with a very high precision. In all to get a final answer, we will need to wait constraints from measurements done on the plots, we see that the best fit is obtained until the next high-energy phase of the LHC, neutrinos from supernovae imply that such if we assume a small-mass Higgs. In other which is expected to start in 2014.” an effect should strongly depend on the words, everything we know up to now energy of the particles. Theories with extra seems to be in excellent agreement with If the Higgs exists, its mass will also tell dimensions may, in principle, accommodate the existence of such a particle.” us something about the supersymmetric such effects, but in my view we should wait world. “A light Higgs is compatible with for independent experimental confirma- Despite the extremely good performance supersymmetry, whose theoretical models tion,” concludes Antoniadis. of the LHC and its experiments, researchers predict the existence of an elementary are not likely to get a final answer this year, particle with the properties of the famous CERN Bulletin but rather next year. And if we need to wait boson. On the other hand, a heavy Higgs

Caption

Real CMS proton-proton collisions events in which 4 high energy electrons (red towers) are observed. The event shows characteristics expected from the decay of a Higgs boson but is also consistent with background Standard Model physics processes.

12 & 19.10.2011 – 7 CERN School of Physics travels to Romania

very year, the From 7-20 September, students at the European School of High- retical and the experimental aspects of a School of High- Energy Physics brought their enthusiasm for physics to Cheile single LHC paper,” says Ellis. “These discus- sion group projects were enormously suc- EEnergy Physics Gradistei, Romania. This was the school’s first time in Romania, hosts students from cessful during our Latin American School around the world to which is set to become a CERN Member State in 2015. earlier this year, and were just as popular learn from the best in Romania!” For the final day of classes, in the HEP field. The Schools began in the to learn and to network with their future CERN Director-General, Rolf Heuer trav- 1960s as a CERN initiative and, since 1971, colleagues.” elled to remote Cheile Gradistei to speak schools have been jointly organised by to the CERN School students and teachers. CERN and the Joint Institute for Nuclear Students attended a comprehensive pro- “Rolf gave a lecture to the students about Research (JINR) in Russia. “This year, we gramme of lectures and discussion sessions, CERN’s scientific programme. It was a great hosted almost 100 participants from 31 and were also given the opportunity to opportunity for students to interact with countries,” says Nick Ellis, director of the discuss their work with their teachers and Rolf personally,” says Ellis. CERN Schools of Physics. “The Schools have peers during a student poster session. “We always been a fantastic opportunity for also asked the students in each discussion With Romania set to become a member the next generation of particle physicists group to work to dissect both the theo- state of the Organization, links between the two are growing closer. In parallel with the School, an exhibition about CERN for the general public opened at the Central University Library Carol I in downtown Bucharest. The Romanian organizers arranged for the CERN School participants to stay in Romania for an extra day, giving them the chance to visit the Romanian capital and the exhibition.

In addition, the students were able to attend Rolf Heuer’s public lecture at the University of Bucharest on 20 September where he was introduced by Daniel Petru Funeriu, Romania’s Minister for Education, Research, Youth and Sports. During a joint press con- ference with the DG, the Minister described Romania’s membership in the Organization as the “top priority” for his office. Over the next five years, Romania will ramp up their contributions to the Organization towards that of a normal Member State. In 2015, CERN Council will decide on Romania’s application for full membership. Director General Rolf Heuer and Minister Daniel Petru Funeriu gave a joint press conference at the CERN exhibit. CERN Bulletin

Students from the 2011 CERN School of High-Energy Physics.

8 – 12 & 19.10.2011 At the heart of CERN for one night

he second edi- Some 200 young people, mostly from neighbouring Switzerland opportunity to experience the reality of tion of CERN or France – but also from Italy, Great Britain and Poland – took research for two hours; an experience that TResearchers part in Researchers Night on Friday, 23 September. Interviewed is all the more fantastic for taking place after Night was a great nightfall. I’m happy at the end of the event success, with inter- by the Bulletin after they had returned from the control rooms of to see young people inspired and motivated national participants the LHC and its experiments, the pupils were full of enthusiasm by physics!” as well as a substan- following, by all accounts, an unforgettable evening. tial local contingent. For those who missed this opportunity: Some 200 young people aged 13 to 18 “I love physics, I love everything to do you can still visit CERN (although not all the registered on the event’s website and spent with the future, and I’m very happy to be control centres) from Monday to Saturday two hours in one of the control rooms of the here!” exclaimed Rafael, from the Cycle by making a reservation with the CERN LHC machine and its experiments. Laëtitia d’Orientation des Colombières, also in Visit Service. Pedroso, a member of the Communication Geneva. Arthur, a pupil from a French sec- Group who participated in the organisa- ondary school—the Lycée Saint-Michel, in CERN Bulletin tion of this event, noted with satisfaction: Annecy—had a chance to visit LHCb, and “Most of the pupils came from neighbour- added: “We talked about matter and anti- ing France and Switzerland, but we also matter, we saw real particle tracks, and we welcomed Italian, British and Polish visitors. saw some real collisions!” Marjorie, a pupil Compared with last year, this year’s pupils at the same school, was surprised to see the came from a greater variety of schools, results of an identification exercise by the which shows that the event is gaining more ATLAS team showing examples of the kinds recognition.” of traces that would be left in the wake of a Higgs boson. Researchers Night has become a highlight for the local public, as it is an opportunity to The evening ended late, as befits a see parts of CERN that are normally closed. ‘Researchers Night’. It was the end of a long “I learned a lot from this visit,” said Paulo, a day for Corinne Pralavorio, who is respon- pupil in the Cycle d’Orientation de Cayla, a sible for local communication at CERN. Her Geneva secondary school. “CERN’s Control assessment of the event: “The local public Centre experts explained to us how the seems to appreciate this kind of initiative. accelerator works and what has to be done Researchers Night gives young people the to get the particles to collide.”

Participants of the 2011 Researchers Night enjoy their visit to CMS.

12 & 19.10.2011 – 9 Playing soon at a planetarium near you

“The full-length show Seeking to popularise the broad research programme “What’s really neat is that now people can will go from the Big undertaken by the LHC experiments, three members of the feel as if they are inside the detector or the Bang to galaxies to LHC tunnel.” underground experi- ATLAS collaboration, Michael Barnett, Kaushik De and Reinhard ments and possibly Schwienhorst, had the idea of reaching new audiences through The University of Texas in Arlington (UTA) AMS before coming a planetarium show. Given the thousands of planetariums has a full-dome planetarium located right to ATLAS for the worldwide, this project could have an astronomical impact… next to the ATLAS Grid Tier 2 Centre. “Its final third or fourth,” staff has developed multiple shows for explains Michael Barnett from Lawrence award-winning people who will do script- NASA, and is looking forward to working on Berkeley Lab (LBL). While much of the media writing, narration, music, etc,” confirms their first project for the LHC,” says Kaushik attention has focused on the Higgs boson, Michael Barnett. De from UTA. “Tens of thousands of young this project will show how an experiment students come to the planetarium every like ATLAS can search for dark matter and The first step was to produce a spectacular year. For the ATLAS show, a licensing fee is explain other great mysteries in physics. 55-second planetarium clip. “The biggest not planned, which I think will increase its challenge was to develop the software to outreach effect.” “We are working with George Smoot, adapt an image for a dome,” comments experts from seven major planetariums Joao Pequenao, also from LBL, who was A full-dome video projector is required to worldwide, and many others. We have instrumental in the making of this clip. display this show, something not every planetarium has. Hence, a subset of those involved in this mega project from Michigan State University (MSU) led by Reinhard Schwienhorst developed in parallel a smaller scale initiative – a 35-minute feature titled “Relics of the Big Bang” that premieres Friday 7 October at the Abrams planetar- ium. “It explains the connection between the LHC and ATLAS with cosmology and the Big Bang, with a special emphasis on MSU’s involvement in this research. It will be made available to other planetariums having simi- lar equipment,” says Reinhard Schwienhorst, a member of the ATLAS Collaboration from Michigan State University. This project involved students from the arts and sci- ences communication, professional writing and physics programmes.

These two initiatives will greatly contribute to bringing the physics of the LHC to new audiences and reaching audiences world- wide. Make sure to keep an eye out for it at your local planetarium.

CERN Bulletin

A snapshot from the ATLAS planetarium show looking distorted when not projected onto a dome (courtesy of Joao Pequenao).

A view of the LHC control room as seen when projected on a dome, but appearing distorted when seen on a flat screen. (courstesy of UTA planetarium). 10 – 12 & 19.10.2011 Indian President visits CERN

pon arrival, On 1 October, her Excellency Mrs Pratibha Devisingh Patil, President of India, picked CERN as the first stop on Pratibha Patil her official state visit to Switzerland. Accompanied by a host of Indian journalists, a security team, and a group was greeted U of presidential delegates, the president left quite an impression when she visited CERN’s Point 2! by CERN Director- General Rolf Heuer, as well as senior Indian scientists working at CERN, and various department directors. After a quick overview of the Organization, Rolf Heuer and the President addressed India’s future collaboration with CERN. India is currently an Observer State of the Organization, and is considering becoming an Associate Member State.

A short stop in LHC operations gave Steve Myers and the Accelerator team the opportunity to take the President on a tour through the LHC tunnel. From there, ALICE’s Tapan Nayak and Spokesperson Paolo Giubellino took Pratibha Patil to the experiment’s cavern. Then it was up to the ALICE control centre, where the President had the chance to video chat with physicists working in India.

Pratibha Patil ended her visit with CERN’s Indian com- munity, who were given the opportunity to meet their President and pose for a quick “family photo”.

See the video at: Her Excellence Mrs Pratibha Devisingh Patil, at the signing ceremony.

http://cdsweb.cern.ch/record/1387921

Katarina Anthony

Luis Álvarez-Gaumé to speak at El A Chat with Ser Creativo 2011 James Watson

n 6 September, Nobel laure- ver the course During the weekend of 19 October, 2011, Madrid will ate James Watson paid a visit of the confer- host this year’s El Ser Creativo – a three-day conference to CERN. In this interview, he ence, 21 speak- O O celebrating new ideas that can change the world. shares his views with CERN’s Paola ers will have the Catapano. chance to share their opinions and ideas for 21 minutes each – the estimated time that the human See the video at: brain is able to maintain complete focus. Among the Nobel Prize win- http://cdsweb.cern.ch/ ners, scientists, doctors, and think- record/1388543 ers invited to this year’s conference is Luis Álvarez-Gaumé, a theoretical physicist at CERN. Having made sig- nificant contributions to the under- standing of gravitation, minimal supergravity theory and supersym- A webcast will be available to stream the entire metry, Álvarez-Gaumé was an obvi- conference live at: ous choice to be invited to share his thoughts about the theory and http://www.elsercreativo.com/ reality of current physics ideas with the conference attendees. Jordan Juras

12 & 19.10.2011 – 11 An exact “Tour de France” passes through CERN

he words “out of In August 2011, the renowned French mountaineer Lionel Daudet the ordinary” are set off from Mont Blanc on a “Tour de la France exacte”, strictly Tnot used lightly following the 5,000 km of land borders and coastline without by a man who has scaled France’s high- using a single motorised vehicle. And about a week into his est peaks in extreme expedition, the French border led him… to CERN of course… conditions and con- where he described his experience as out of the ordinary. quered the world’s greatest climbs (mainly solo), from Alaska visit to CERN, and what touched his heart to Patagonia. “I had never visited a physics most was the CERN spirit. “I feel total affin- lab before today,” confesses Lionel Daudet, ity with the spirit of openness that has sitting at a table in the CERN cafeteria. “You underpinned CERN’s development and I get the feeling that knowledge is being built share your aim of pushing back the frontiers here. When I crossed this particular border of knowledge, which must always come into CERN it was like crossing a bridge and I before national interests. For me, frontiers realised that, as a mountaineer, I have a lot are bridges, not barriers. This goes without in common with researchers.” saying here at CERN because, in addition to the twenty Member States, the lab is open Whether you’re an explorer in the literal to scientists from all over the world. CERN is sense or a researcher plumbing the depths a great example for the world to emulate,” of the Universe, the aim is similar – to push he concludes. human boundaries and venture into the unknown. “It was fantastic to meet physi- Lionel Daudet continues his voyage along cists today. Their work is so exciting and France’s borders and you can follow his very much like mine – I’m trying to reach the progress over the coming twelve months summits of the Earth while they’re trying to by visiting his website where, among other reach the summits of knowledge. It’s not things, you can track his precise position at that different,” muses Lionel. any given time.

After scaling the Mont Blanc, crossing CERN Bulletin the Chablais, and paddling 80km across Lake Geneva in an 8-seater pirogue, the adventurer took time out to reflect on his Lionel Daudet at one of the posts marking the French border in Meyrin (next to the Linac 4 building).

12 – 12 & 19.10.2011 Pauline Gagnon’s Blog: Did we build the LHC just to find the Higgs?

espite the There are bosos and bosons, and if the Large Hadron Collider (LHC) media focus- were built only to find the Higgs boson, you would be absolutely Many of us, including myself, hope to get Ding mainly on right to think all physicists belong to the first category. But the a glimpse at a parallel world called the the Higgs boson, Hidden Valley, a hypothetical world made of this search only rep- fact is, the LHC does much more than search for Higgs bosons. dark matter, with very few exchanges with resents one of the our universe. many aspects we hope to cover with the ment wants to elucidate. And it has already LHC. Granted, the Higgs boson brings taken great strides in this direction. Both ATLAS and CMS, being such versatile such an elegant solution to the problem of experiments, can look for many different the origin of mass that its high popularity Finding out what dark matter is made of types of dark matter candidates. One pos- among physicists has reached even the is certainly high on the LHC agenda. Dark sibility is proposed within supersymmetry general public. matter was postulated in 1934 by Fritz (or SUSY for short), a theory so popular, Zwicky to explain why rotating galaxies many think it could be the first one to be But the LHC could be opening the door to don’t simply fly apart under the effect of discovered with the LHC. parallel worlds, extra dimensions or the dis- centrifugal forces. Some unseen but huge covery of as many new particles as the ones quantities of matter seem to provide the SUSY is seen as the simplest extension one we already know. These are but some of the necessary gravitational field needed to hold could make to the Standard Model to fill in exciting questions we are trying to address. them together. It is hard to dismiss it since a few holes left open in our current theory. dark matter and dark energy account for As it stands, we have two categories of By exploring the world of infinitely small about 95% of all matter in our universe! But particles, the fermions and the bosons. The particles, many of us hope to provide this strange type of matter, unlike stars and first ones are the building blocks of matter, answers to the origin of our universe. The galaxies, does not emit any light, hence its the second are force carriers. These two sets ALICE experiment aims to study the prop- name. It only responds to gravitation, leav- of particles behave completely differently. erties of quark-gluon plasma, a state of ing much room for speculation on its nature. Fermions have half units of spin (one basic matter that existed only immediatly after property like the electric charge) whereas the Big Bang. Many different hypotheses have been bosons either have spin 0, 1 or 2. SUSY asso- proposed to explain the nature of dark ciates a super partner to each particle such What happened just after the Big Bang? matter but so far, we have not succeeded in that each fermion would come with a “sfer- Why did matter overtake anti-matter when identifying particles associated with it. This mion” (as in supersymmetric fermion) with in a laboratory, they are created in equal mystery remains to be solved even though integer spin associated to it. It is the same amounts? Where is this asymmetry coming some experiments claim to have seen it, for the bosons. Heavier particles would be from? This is precisely what the LHCb experi- while others contradict these observations. associated with light ones, and vice-versa. That way, everything would seem much more balanced, getting rid of the puzzling differences among all the elementary particles, ranging from ultra light to super heavy.

Supersymmetry has every- thing to be successful except that it has not manifested itself yet, despite all our attempts at unveiling it.

What would you say if you found out we do not live in a four-dimensional world, (three dimensions of space and one of time) but rather one containing extra hidden dimensions? This is at least what some theorists sug- gested, predicting that these dimensions are so small that they are not readily available to us. To visualize this, imagine you are a tightrope walker. To you, only one-dimension is accessible: you can move forward or backward. But for an insect walking on the same A selection of recent results obtained by the ATLAS experiment in search for new discoveries. In blue, searches for various supersymmetric (Continued on page 14) models, in turquoise, models involving extra dimensions, and the other colors showing even more exotic models.

12 & 19.10.2011 – 13 Did we build the LHC just to find the Higgs? (Continued from page 13) taut cable, it is also possible to go around tional force: 41 orders of magnitude at the ing only a small fraction of it for us to feel on the cable, giving it access to an additional scale of the nucleus! Just think how much the macroscopic scale. dimension that is inaccessible to you. stronger a small fridge magnet is compared to gravitation. Bring it close enough to the Who needs science fiction when we have Why should we need this? Extra dimen- fridge and the magnet can overcome the particle physics? Enough strange puzzling sions would explain why gravitation is so gravitational attraction of a whole planet! If questions and even stranger possible weak. We physicists have long pondered extra dimensions exist, they would provide answers to blow your mind! over the huge discrepancy between, say, a place where most of the strength of the the electromagnetic force and gravita- gravitational force could be leaking to, leav- To be alerted of new postings, follow me on Twitter: @GagnonPauline

Pauline Gagnon

Computer Security Sécurité informatique

Security Bingo I personally…

…am con- …run on my …lock my …have chosen …have ant to check your security aware- cerned about computer computer a reasonable restricted ness and win one of three marvel- computer anti-virus screen when- complex pass- access to all my lous books on computer security? W security. software with ever I leave my word. files and data. Just print out this page, mark which of up-to-date office. the 25 good practices below you already signature files. follow, and send the sheet back to us by 31 October 2011 at either Computer. …am aware …protect …am vigi- …understand …regularly [email protected] or P.O. Box G19710. of the confidential lant before the risks of click- patch my com- security risks documents opening mail ing on strange puter. Winners[1] must show that they fulfil at least and threats and do not attachments. links. five good practices in a continuous vertical, to CERN’s make them horizontal or diagonal row. For details on computing public. CERN Computer Security, please consult facilities. http://cern.ch/security. …will never …do not run …have …respect copy- …immedi- disclose my prohibited brought my rights and do ately delete ______password to applications. mouse to not share music “Phishing” someone else. the CERN or films. emails. [1] In the event of more than three credibly correct Computer replies, we will draw from the pool of replies. Animal Shelter (http://cern. ch/c-a-s). …do not run …never install …never type …know how ...never file sharing plug-ins. my CERN to contact installed rogue applications. password at Computer. wireless access Internet cafés. Security@cern. points. ch …have fol- …do not store …have read, …have distinct …protect my lowed one or my music understood passwords for laptop against more security or films in a and agree CERN, Facebook, theft. training ses- public place. to the CERN Amazon, and sions. Computing others. Rules.

Computer Security Team

14 – 12 & 19.10.2011 Members of the personnel shall be deemed to have taken note of the news under this heading. Reproduction of Official all or part of this information by persons or institutions external to the Organization requires the prior approval of Take note news the CERN Management.

ADMINISTRATIVE CIRCULAR EDUCATION FEES: INDEXATION CHANGES TO THE SHUTTLE NO. 2 (REV. 5) – RECRUITMENT, OF THE AMOUNTS FOR CIRCUITS APPOINTMENT AND POSSIBLE ACCOMMODATION, MEALS AND To fit with passengers expectation, there DEVELOPMENTS REGARDING SCHOOL TRANSPORT FOR THE will be some changes to the shuttle circuits THE CONTRACTUAL POSITION OF 2011-2012 ACADEMIC YEAR as from Monday 10 October. See details on STAFF MEMBERS http://cern.ch/ShuttleService (on line on 7 At its meeting on 1 September 2011, October). Administrative Circular No. 2 (Rev. 5) enti- the Standing Concertation Committee tled “Recruitment, appointment and pos- approved the calculated indexation of the Circuit No. 5 is cancelled as circuit No. 1 also sible developments regarding the contrac- amounts for accommodation, meals and stops at Bldg. 33. tual position of staff members”, approved school transport for the 2011-2012 aca- In order to guarantee shorter travel times, by the Director-General following dis- demic year. Accommodation fees for the circuit No. 1 will circulate on Meyrin site only cussion in the Standing Concertation 2011-2012 academic year will be paid in the and circuit No. 2, with departures from Bldg. Committee meeting on 1 September form of a lump sum of 545 CHF per month 33 and 500, on Prévessin site only. 2011, is available on the intranet site of the (paid at the rate of 100%). The amount used Human Resources Department: for the calculation of meal payments will be 18.50 CHF per meal (paid at the rate of Site Services Section https://cern.ch/hr-docs/admincirc/ GS Department admincirc.asp 75%). The ceiling for school transport fees has been set at 627 CHF for the 2011-2012 It cancels and replaces Administrative academic year. Circular No. 2 (Rev. 4) entitled “Recruitment, Education Fees Service appointment and possible developments Tel. 72862 / 71421 ANNOUNCEMENT BY THE regarding the contractual position of staff Human Resources Department members” of September 2009. LOGISTICS SERVICE

Please note that CERN will dispatch or Department Head Office deliver only packages that relate to official Human Resources Department orders or contracts. Individuals are not authorised to have private merchandise delivered to them at CERN and private OPERATIONAL CIRCULAR NO. 9 – REMINDER - EXTENSION/ deliveries will not be accepted by the Goods PRINCIPLES AND PROCEDURES SUPPRESSION OF ALLOWANCE Reception services. GOVERNING COMPLAINTS OF FOR DEPENDENT CHILDREN AGED Thank you for your co-operation. HARASSMENT 20 TO 25 GS-IS-LS Service GS Department Operational Circular No. 9 entitled Members of the personnel with depend- “Principles and Procedures Governing ent children aged 20 to 25 (or reaching Complaints of Harassment”, approved by 20 during the 2011/2012 school year), for the Director-General following discussion whom an allowance for dependent children in the Standing Concertation Committee is currently paid, are invited to provide the THE CERN BRANCH OF THE UBS meeting on 21 March 2011, is available on Education Fees Service with a: HAS A NEW MANAGER the intranet site of the Human Resources SCHOOL CERTIFICATE Department: After seven years at the helm of the CERN Unless we receive, by 31 October 2011 at https://cern.ch/hr-docs/opcirc/opcirc. branch of the UBS, Mr. Denis Mellet retired the latest, a school certificate or similar on 1st October. asp written proof (contract of work placement, Operational Circular No. 9 is applicable sandwich courses or apprenticeship) cov- Denis Mellet has always striven to develop to any person working at or on behalf of ering your child / children for the school harmonious relations, in a climate of trust, CERN. year 2011/2012, we will be obliged to stop between CERN and the staff of the bank. payment of the allowance for dependent He has succeeded in maintaining a pleas- It cancels and replaces Administrative ant atmosphere within his team. We would Circular No. 32 entitled “Principles and children as well as affiliation to the health insurance at the appropriate date and ret- like to thank him for his work and wish him Procedures Governing Complaints of a happy retirement. Harassment” of February 2000. roactively if necessary. Education Fees Service He is succeeded by M. Ezio Mangia, who Mailbox C20000 has worked for many years in the bank’s Department Head Office [email protected] branches department. Human Resources Department Tel. 72862 / 71421 Human Resources Department

12 & 19.10.2011 – 15 Take note

PREPARATION FOR RETIREMENT SEMINAR VACCINATION AGAINST SEASONAL INFLUENZA: A REMINDER The Human Resources Department is Presentations: The speakers will be experts organizing a Preparation for Retirement either within or outside the Organization. At this time every year the Medical Service Seminar, which will take place on the Each speaker will make a presentation, suggests that you should get vaccinated afternoon of 18 and 21 October 2011 in underlining the key points for prospective against seasonal flu. the Main Auditorium and on 19 October pensioners to note and/or take into ac- We would like to remind you that vac- and 15 and 16 November 2011 in the af- count. They will then take questions. Most cination is the best method of protecting ternoon in the Council Chamber. Similar of the presentations will be given in French. yourself and others against this contagious seminars in the past have always proved However, you are welcome to put your ques- illness which can have serious consequences highly successful. tions in English. Members of the CERN-ESO for certain people, especially those suffer- Pensioners’ Association (GACEPA) will attend Retirement marks the end of a person’s ing from chronic medical conditions (e.g. each session and may possibly supplement working life and the start of a new chapter. chronic pulmonary, cardiovascular or kid- presentations with comments based on This period of transition is experienced ney disease or diabetes), pregnant women, their own experience. The details of the differently from one individual to another. people suffering from obesity (BMI>30) and (provisional) programme can be found at: In all cases, being well-informed and pre- those over 65. pared greatly facilitates the change in https://indico.cern.ch/conferenceDisplay. As the Medical Service does not supply lifestyle. py?confId=141029 the vaccine, you must purchase it from We would like to draw your attention to Questions: You may submit your questions a pharmacy (in France without the need the following information: in advance when you register via Indico. for a prescription). From the beginning of Staff concerned:All staff members aged They will be transmitted to the speaker October you can then bring your vaccine 58 and above have been sent a personal concerned to allow him to reply. Naturally, to the Infirmary (Building 57-Ground floor) invitation to attend. Spouses are welcome. it will not be possible to discuss details of in- and get vaccinated without an appointment dividual cases, for which the various internal between 9 a.m. and 12 a.m. and 2 p.m. to Staff members under the age of 58 who and external services are available to you. 4:30 p.m.. are interested in attending the seminar may also apply. Their applications will be Documentation: The overhead presenta- For the purposes of health insurance reim- accepted subject to availability of places. tions, the complete video recording and bursement, you can get a prescription from a summary of the question-and-answer the Medical Service either on the day of the Registration: In view of the number of sessions will be available on Indico on the injection or beforehand. people concerned, you are requested to same site as the programme. register in advance via Indico at the fol- Reminder: The Medical Service cannot pro- lowing address: Please also note that the brochure “When vide this vaccination service for family mem- you leave CERN” is available on the Human bers or retired members of the personnel. https://indico.cern.ch/conferenceDis- Resources Department website at the fol- For further information and new 2012 play.py?confId=141029 lowing address: recommendations, please consult: You may register for all the sessions or only cern.ch/hr-services/Int/WYLC/default.asp for the subjects of interest to you. * Flyer “seasonal Flu” from the Medical If you envisage retiring in the coming two Service: https://espace.cern.ch/Medical- One afternoon will be devoted to re- or three years, I strongly encourage you to service/site_documents/flyergrippeG- tirement in each the two Host States, register for this seminar. Bweb.pdf Switzerland and France respectively. These two sessions are particularly designed for * The WHO recommendations in English : those: Best regards, http://www.who.int/topics/influenza/en/ index.html * who intend to take up residence in one * Recommendations of the Swiss Federal of these countries on retirement, Anne-Sylvie Catherin Office of Public Health (OFSP) in English: Head of Human Resources Department * who have worked and acquired pen- http://www.vaccinateagainsttheflu.ch/ sion rights in one of these countries. en-us/vorsorge-und-hygienemassnah- men.html * Recommendations of the Haut Conseil de la santé publique (in French only): https://espace.cern.ch/medical-service- fr/site_documents/Forms/AllItems.aspx

Medical Service - GS Department

Information: K. Robert / GS-SEM-LS / 74407 GS Department

16 – 12 & 19.10.2011 Take note

ITALY AT CERN – INDUSTRIAL EXIBITION

From 10 to 13 October 2011 Nineteen companies will present their latest technology at the industrial exhibition “Italy Industrial Exhibition at CERN”. Italian industry will exhibit products and technologies which are related to the Bldg 500 & 61 field of particle physics. Individual interviews will take place at either the companies’ exhibition stands or in the Main Building’s conference rooms. The firms will contact relevant users/technicians but any user wishing to make contact with a particular firm is welcome to use the contact details which are available from each secretariat of department or to get in touch with Karine ROBERT. You will find below the list of exhibitors.

List of Exhibitors :

Agilent Technologies - via Varian 54 - Fantini Sud S.p.A. - Strada P.le Casilina per Sarvadon S.r.l. - via Circonvallazione, 3 - 10040 Leinì (TO) Sgurgola n° 52 - 03012 Anagni (FR) 11024 Châtillon (AO) http://www.agilent.com/chem/vacuum http://www.fantinispa.it/ http://www.sarvadon.org/ Pioneer in vacuum technology since the Production of plants and equipments in all Manufacturing of steel, stainless steel, and 50’s. the phases of the project. aluminum. CAEN S.p.A. - via Vetraia, 11 – 55049 RICA - Divisione IRCA S.p.A. - via Podgora SEA ALP Engineering Consortium At Viareggio (LU) 26 - 31029 Vittorio Veneto (TV) Criotec Impianti S.r.l. - via F. Parigi, 32 10034 Chivasso (TO) http://www.caen.it/ www.zoppas.com http://www.criotec.com/ Data-Acquisition Electronics (standard Heating elements and systems, with thermal VME, NIM, CAMAC solutions) and powered control for domestic and industrial applica- Joint venture of 7 partners for projects Crates. tions of plants and machinery for high energy research. CECOM S.r.l. - via Tiburtina Km 18,700 – Lungari Giuseppe S.r.l. - via Repubblica di 00012 Guidonia Montecelio (RM) S.Marino 44 – 41122 Modena STRUMENTI SCIENTIFICI CINEL S.r.l. - via dell’Artigianato 14 – 35010 Vigonza (PD) http://www.cecomweb.com/ http://www.lungarigiuseppe.it/ http://www.cinel.com/ Specialized in high precision machining Milling and grinding works on large size and design. tooling machine. Production and turnkey solutions for synchrotron light and particle accelerator MAPRad S.r.l.- via C. Colombo 19/i - 06127 Inziative Industriali S.r.l. - COSMI Group - research equipments. via Teodorico, 5 - 48122 Ravenna Perugia http://www.maprad.com/ ECOR RESEARCH - via Friuli, 11 Z.I. - 36015 http://www.gruppocosmi.com/ Schio (VI) - Radiation Hardness Studies and Qualification Design, supply and installation of plants in for electronics. http://www.ecor-research.com/ the energy sector and chemistry. REVEN.GE S.r.l. - via Sansovino, 217 - 10151 Designs, manufactures, assembles and C.S.C. S.p.A. - via Lago Maggiore 7 - 36015 Torino manufactures stainless steel and special Schio (VI) http://www.revenge.it/ alloys for the Food Industry, Pharmaceutical, Aerospace and Scientific Research. http://www.csc-schio.com Project and development of high tech solu- Special welding, design and manufactur- tions for IT projects.. VAQTEC S.r.l. – c.so Grosseto 437 – 10151 Torino ing of components for energy, aerospace RIAL VACUUM S.r.l. - via Tito ed Ettore www.vaqtec.com industry and scientific research. Manzini, 7/a - 43126 Parma Manufacturer and distributor of competi- Dimensione S.p.A. - via VIII Marzo n° 8 - http://www.rialvacuum.com/ 10095 Grugliasco (TO) tively priced quality products for use in high Ultra-high vacuum and cryogenic sector and ultra high vacuum environments. http://www.gruppodimensione.com/ applications. V.C.S S.r.l. – via Moneta 2/a Quartiere SPIP General contractor specialized in civil SAES Getters S.p.A. - viale Italia, 77 - 20020 – 43100 Parma works and in high tech electrical and HVAC Lainate (MI) http://www.vcs-pr.it/ installations. http://www.saesgetters.com/ A machine tool production company spe- Development and production of getters for cialised in the VACUUM – HIGH VACUUM a variety of scientific and industrial applica- and UHV sectors. Information: K. Robert / GS-SEM-LS / 74407 tions. GS Department

12 & 19.10.2011 – 17 Take note

18 – 12 & 19.10.2011 Take note

EXHIBITION - MATHEMATICS, A BEAUTIFUL ELSEWHERE

From 21 October 2011 to 18 March tion that allows visitors to see, hear, do, Private Visit 2012, the Fondation Cartier pour l’art interpret and think about mathematics. By For professors, researchers and all the staff contemporain will present the exhibition bringing mathematics into its premises, the of Mathematics departments and Physics Mathematics: A Beautiful Elsewhere, an Fondation Cartier is itself undergoing the laboratories, 24 October 2011 from 12 a.m. exhibition developed in association with “sudden change of scenery” described by to 7 p.m. at the Fondation Cartier pour l’art the Institut des Hautes Études Scientifiques mathematician Alexandre Grothendieck. contemporain. (IHÉS) and under the patronage of More information is available at: UNESCO. For this unprecedented event, Reservation required through the Visitor the foundation invited mathematicians http://fondation.cartier.com/files/press_ Service: to work with artists with whom it has file_2202_en.pdf [email protected] / previously worked to create an exhibi- Fondation Cartier pour l’art contemporain Phone : +33 (0) 1 42 18 56 67 261, boulevard Raspail 75014 Paris http://fondation.cartier.com

Safety External Training Course meeting

SAFETY TRAINING: SCHEDULED SESSIONS IN SEPTEMBER AND Geneva University OCTOBER 2011 Physics Department 24, quai Ernest-Ansermet The following training courses are sched- EDH from the course description pages, by CH-1211 Geneva 4 uled in September – Octoberx. You can clicking on SIGN-UP. find the full Safety Training programme Registration for all courses is always open on the Safety Training online catalogue. – sessions for the less-requested courses Wednesday 12 October 2011 If you are interested in attending any of are organized on a demand-basis only. PARTICLE PHYSICS SEMINAR the below courses, please talk to your Depending on the demand, a session will supervisor, then apply electronically via be organised later in the year. at 17.00 hrs – Stückelberg Auditorium “Towards 3+1 Neutrino Mixing” Alphabetical order (original course titles are maintained) Par Prof. Carlo Giunti, INFN Torino

Conduite de chariots élévateurs Recyclage Habilitation - Personnel élec- I will review the recent experimental indi- 17-OCT-11 au 18-OCT-11, 8h00 – 17h30, tricien effectuant des opérations du domaine de tension BTA cations in favor of short-baseline neutrino en français * oscillations. I will discuss their interpreta- Laser Users 14-OCT-11, 9h00 – 17h30, en français tion in the framework of neutrino mixing schemes with one or more sterile neu- 28-OCT-11, 9h00 – 12h30, en anglais trinos which have masses around the eV Radiological Protection (*) Session in French with possibility to have scale. Taking into account also cosmologi- the documentation in English. 11-OCT-11, 13h30 – 17h30, en anglais cal constraints, I will present arguments in favor of 3+1 neutrino mixing with one 18-OCT-11, 8h30 – 12h30, en anglais Isabelle Cusato (HSE Unit) sterile neutrino at the eV scale. 18-OCT-11, 13h30 – 17h30, en français 28-OCT-11, 13h30 – 17h30, en anglais Information : http://dpnc.unige.ch/seminaire/annonce. html Organizer : G. Pasztor

12 & 19.10.2011 – 19 Seminars

TUESDAY 11 OCTOBER FRIDAY 14 OCTOBER THURSDAY 20 OCTOBER

LHC SEMINAR PARTICLE AND ASTRO-PARTICLE PHYSICS COLLIDER CROSS TALK 11:00 - TH Auditorium, Bldg. 4 SEMINARS 11:00 - TH Auditorium, Bldg. 4 Heavy flavor physics with the CMS 14:00 - TH Auditorium, Bldg. 4 Search for Resonances in the Dijet experiment Cosmic magnetic fields and their Mass Spectrum from 7 TeV pp Col- V. CHIOCHIA /UNIVERSITÄT ZÜRICH (CH) relation to the baryon/lepton asym- lisions metry in the Universe M. GOUZEVITCH / LABORATOIRE LLR TH STRING THEORY SEMINAR O. RUCHAYSKIY / CERN-TH 14:00 -TH Auditorium, Bldg. 4 FRIDAY 21 OCTOBER BPS Saturated String Amplitudes: TUESDAY 18 OCTOBER K3 Elliptic Genus and Igusa Cusp DETECTOR SEMINAR Form LHC SEMINAR 11:00 - 40-S2-B01 - SALLE BOHR S. HOHENHEGGER / MPI MUNICH 11:00 -Council Chamber, Bldg. 503 Digital Silicon Photomultiplier For Searches for Exotic Physics with the Low Light Detection In High Energy ATLAS Detector WEDNESDAY 12 OCTOBER Physics D. FORTIN / TRIUMF (CA) T. FRACH / PHILIPS TECHNOLOGIE GMBH TH COSMO COFFEE 11:00 - TH Auditorium, Bldg. 4 PREPARATION FOR RETIREMENT SEMINAR PARTICLE AND ASTRO-PARTICLE PHYSICS Hidden sector dark matter models 13:00 - MAin Auditorium, Bldg.500 & Council Chamber, Bldg. 503 SEMINARS for DAMA/CoGeNT/INTEGRAL 14:00 -TH Auditorium, Bldg. 4 J. CLINE / MCGILL U. Préparation à la retraite - 2011 - Preparing for retirement/HR-SPS- Boltzmann-like transport theory HIS including quantum coherence CERN COMPUTING COLLOQUIUM K. KAINULAINEN / U. JYVASKYLA, U. HELSINKI & CERN- 14:00 - Kjell Johnsen Auditorium, Bldg. 30/7-018 TH STRING THEORY SEMINAR TH Evolving Commercial Instrumen- 14:00 -TH Auditorium, Bldg. 4 tation to Meet Needs of Scientific TBA Research P. HESLOP /DURHAM J. TRUCHARD / NATIONAL INSTRUMENTS PRESIDENT Friday 18 November 2011 AND CEO WEDNESDAY 19 OCTOBER John Adams Lecture TH COSMO COFFEE LHC – Bold Beginning WEDNESDAY, OCTOBER 12, 2011 FROM 11:00 - TH Auditorium, Bldg. 4 Dr. Mike Lamont, CERN TH THEORETICAL SEMINAR TBA 14:30 - Council Chamber, CERN 14:00 - TH Auditorium, Bldg. 4 C. CAPRINI (/ PHT CEA SACLAY Electroweak Baryogenesis in Two Following interesting initial com- missioning in 2010, the LHC is now Higgs Doublet Models performing beyond expectations. ISOLDE SEMINAR J. CLINE / MCGILL U. After a brief recap of the timeline, 14:30 - Bldg. 26-1-022 an attempt is made to identify the THURSDAY 13 OCTOBER TBA contributory causes to the LHC’s present success. Existing and S.G-HA PARK/ (SUNGKYUNKWAN UNIVERSITY TH BSM FORUM future challenges are discussed. 14:00 -TH Auditorium, Bldg. 4 Superluminal neutrinos in long baseline experiments and SN1987a L. PANIZZI / IPN LYON

20 – 12 & 19.10.2011