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A New X-Ray Eye in the Sky

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A New X-Ray Eye in the Sky INTER NATIONAL JOURNAL OF HIGH-ENERGY PHYSICS CERN COURIER VOLUME 40 NUMBER 7 SEPTEMBER 2000 »i*« A new X-ray eye in the sky ANTIMATTER ASYMMETRY TAU NEUTRINO DISAPPEARING NEUTRINOS Exploring a new route to The most elusive particle Over 250 km, neutrinos slip CP violation p5 of all turns up p6 off the map p8 MATHEMATICA The way the world calculates Web Standards Symbolic Algebra Mathematical typesetting technology Leading financial analysts use was instrumental in the design Mathematical symbolic algebra of MathML. Wolfram Research is capabilities to refine and improve hosting the first conference on this standard models for derivative new'W3C standard for publishing securities pricing. mathematics on the web. [London] [Champaign-Urbana, Illinois] / Technical Documents Mathematical technical typesetting Notebooks system is now used to set all mathe­ Mathematica notebook documents matical formulas in all U.S. patents, let researchers at Mitsubishi thanks to the joint effort of Reed communicate research results Technology and Information Services instantly throughout their company. and Wolfram Research. [Osaka, Japan] [Horsham, Pennsylvania] '•:•. ; \ Numeric Computation Visualization Mathematical numeric differential MaZ-fiemaf/ca-based simulations ^ equation solvers let Ford Motor and models of the retina teach Company model the chemical visual perception to students at kinetics of combustion, testing the Image Sciences Institute at designs to make cars run cleaner. Utrecht University. [Detroit] [Utrecht, Netherlands] • Integrated Environment, Ease of Use Programming Language The all-in-one, easy-to-use Mathematica Mathematica'% uniquely intuitive environment lets students at hundreds of language helps hundreds of new leading colleges and universities world­ high-tech companies overcome wide gain a deeper understanding of their most demanding R&D core concepts. challenges. [All over the Globe] [Silicon Valley, California] In the world of technical computation and With its wealth of powerful, flexible capabilities, communication, Mathematica sets the standard. Mathematica is changing the way the world calculates. Every day, technical professionals around the world Isn't it time to see what Mathematica can do need to solve increasingly complicated problems as for your world? part of their routine work. More and more, they are discovering what leading researchers have known WOLFRAM for over a decade: Mathematica is an indispensible RESEARCH tool for finding and communicating solutions quickly and easily. www* wolf ram*€oni For more information, visit our web site or call toll free 1-877-239-7148. Outside the U.S., find contact information at www.wolfram.com; tional. ©2000 Wolfram Research, Inc. Mathematica is a registered trademark of Wolfram Research, inc. Mntiiùmof'ca is not associated with Mathematica Policy Research, Inc. or Mathïech, Inc. CONTENTS Covering current developments in high- energy physics and related fields worldwide CERN Courier is distributed to Member State governments, institutes and laboratories affiliated with CERN, and to their personnel. It is published monthly except January and August, in English and French editions. The views expressed are not necessarily those of the CERN management. CERN Editor: Gordon Fraser CERN, 1211 Geneva 23, Switzerland E-mail [email protected] Fax +41 (22) 782 1906 Web http://www.cerncourier.com News editor: James Gillies COURIER VOLUME 40 NUMBER 7 SEPTEMBER 2000 Advisory Board: R Landua (Chairman), F Close, E Lillest0l, H Hoffmann, C Johnson, K Potter, PSphicas Laboratory correspondents: Argonne National Laboratory (USA): D Ayres Brookhaven, National Laboratory (USA): PYamin Cornell University (USA): D G Cassel DESY Laboratory (Germany): Ilka Flegel, P Waloschek Fermi National Accelerator Laboratory (USA): Judy Jackson GSI Darmstadt (Germany): G Siegert INFN(ltaly):APascolini IHEP, Beijing (China): Qi Nading Jefferson Laboratory (USA): S Corneliussen JINR Dubna (Russia): BStarchenko KEK National Laboratory (Japan): A Maki Lawrence Berkeley Laboratory (USA): Christine Celata Los Alamos National Laboratory (USA): C Hoffmann OWL telescope project pl5 LHC report at EPAC 2000 p26 First Wiik prize winners p36 NIKHEF Laboratory (Netherlands): Margrietvan der Heijden Novosibirsk Institute (Russia): S Eidelman Orsay Laboratory (France): Anne-Marie Lutz News 5 PSI Laboratory (Switzerland): P-R Kettle Rutherford Appleton Laboratory (UK): Jacky Hutchinson CP asymmetry moves to new setting. DONUT comes to neutrino town. Saclay Laboratory (France): Elisabeth Locci Energen has a winning plan. Synthetic neutrinos appear to disappear. IHEP, Serpukhov (Russia): Yu Ryabov Stanford Linear Accelerator Center (USA): M Riordan Antiprotons come with ail the trappings. Extreme cryogenics keeps TRIUMF Laboratory (Canada): M K Craddock LHC cool. First test beams are delivered for the LHC. Produced for CERN by Institute of Physics Publishing Ltd I0P Publishing Ltd, Dirac House, Temple Back, Bristol BS16BE, UK Tel. +44 (0)117 929 7481 Physicswatch 13 [email protected] Web http://www.iop.org Astrowatch 15 Head of magazines: Richard Roe Publishing manager: Jo Nicholas Art director: Andrew Giaquinto Features Production editor: Kerry Harding XMM-Newton measures the hot universe 17 Technical illustrator: Alison Tovey Advertising manager: Jo Nicholas First of a new generation of X-ray observatories Recruitment sales: Andrew Hardie and Jayne Purdy Advertisement production: Katie Graham Product manager: So-Mui Cheung Mapping quark confinement by exotic particles 23 Looking for new kinds of particles Advertising: Jo Nicholas, Andrew Hardie or Jayne Purdy Tel.+44 (0)117 930 1026 E-mail [email protected] No stopping the accelerator 26 Fax +44 (0)117 930 1178 Colin Johnson and Philip Bryant report from particle accelerator General distribution: Jacques Dallemagne, CERN, 1211 Geneva 23, Switzerland. E-mail [email protected] conferences in Vienna j In certain countries, to request copies or to make address changes, contact: China: Chen Huaiwei, Institute of High-Energy Physics, P.O. Box Wolfgang Pauli: never to be excluded 30 918, Beijing, People's Republic of China Germany: Gabriela Heessel or Veronika Werschner, DESY, Honouring We conscience of physics' \ Notkestr. 85, 22603 Hamburg 52. E-mail [email protected] Italy: Loredana Rum or Anna Pennacchietti, INFN, Casella Postale 56, 00044 Frascati, Roma People 34 United Kingdom: Su Lockley, Rutherford Appleton Laboratory, • Chilton, Didcot, Oxfordshire 0X11OQX. E-mail [email protected] USA/Canada: Janice Voss, Creative Mailing Services, P.O. Box 1147, Recruitment 39 St Charles, Illinois 60174. Tel. 630-377-1589. Fax 630-377-1569 Published by: European Laboratory for Particle Physics, CERN, Bookshelf 47 1211 Geneva 23, Switzerland. Tel. +41 (22) 767 6111 Telefax +41 (22) 767 65 55 USA: Controlled Circulation Periodicals postage paid at St Charles, Illinois Printed by: Warners (Midlands) pic, Bourne, Lincolnshire, UK © 2000 CERN ISSN 0304-288X Cover: A new X-ray eye in the sky - the European Space Agency's X-ray Multi-Mission XMM-Newton. loP (Photo ESA.) pl7. CERN Courier September 2000 3 All you need. - for particle accelerators _ MAGNET TECHNOLOGY < MAGNET POWER SUPPLIES \« CURRENT TRANSDUCERS \ • ELECTRON \ ACCELERATORS \ • /CW ACCELERATORS * ELECTROSTATICS » BEAM DIAGNOSTICS We cover all your needs "from source to target". Our team cooperates very closely with customers from an early stage in any request or project. We have the experienced engineers who can match all requirements including beam optics, mechanics, vacuum and electronics. We offer tested and documented products and complete installations of all equipment worldwide. DANFYSIK makes the total optimum solution. DANFYSIK DK-4040 Jyllinge. Denmark Tei.:+45 4678 8150- Fax.: +454673 1551- e-mail:sales%danfysik.dk- www.danfysik.dk in USA: GMW Associates; Tel.: (650) 802 8292 - Fax (650) 802 8298- e-mail:sales0gnmcom ' In India: Transact India Corporation, Tel.:(22) 285 5261- Fax: (22) 285 2326- e-mati:ifem$@¥$nLcom in Japan: Marubun Corp., Tel (03) 3639-9652- Fax.(03j 5644-7627- e-mail.vacuurr, 'v marass- c^to NEWS CP asymmetry moves to new setting The year 2000 sees the debut of a new kind of until October, collecting 25 inverse femto­ precision physics. It formally began with the barns (BaBar aimed for 30 inverse femto­ opening plenary talks at the International barns, so they are right there from the start). Conference on High Energy Physics, the bien­ BELLE at KEKB uses the full data sample nial particle physics jamboree, held this year since the start-up, corresponding to 6.8 in Osaka. inverse femtobarns.The luminosity reached so On 31 July the initial plenary speakers at far is 2.04 x 1033.The decay channels used for Osaka - David Hitlin of Caltech and Hiroaki the determination of the sin(2(3) CP-violating Aihara of Tokyo - presented the first physics One B Factory - the PEP-II ring at SLAC... parameter include, in addition to those used at results from the BaBar and BELLE detectors PEP-II, B decays into chi-cl and decays giving respectively. A small but paradoxically impor­ long-lived kaons. (BaBar has about 89 of tant effect called CP violation has now been these but doesn't include them yet.) A total of seen and measured outside its traditional 98 events enter the final BELLE CP fit. hunting ground, which had been limited to For J/psi Ks events only, the BELLE result is studies of neutral kaons. sin(2|3) = 0.49 + 0.53 - 0.57. Combining this BaBar and BELLE
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