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Bringing the Heavens Down to Earth International Journal of High-Energy Physics CERN I COURIER Volume 44 Number 3 April 2004 Bringing the heavens down to Earth ACCELERATORS NUCLEAR PHYSICS Ministers endorse NuPECC looks to linear collider p6 the future p22 POWER CONVERTERS Principles : Technologies : • Linear, Switch Node primary or secondary, Current or voltage stabilized • Hani, or résonant» Buck, from % to the sub ppm level • Boost, 4-quadrant operation Limits : Control : * 1A up to 25kA • Local manual and/or computer control * 3V to 50kV • Interfaces: RS232, RS422, RS485, IEEE488/GPIB, •O.lkVAto 3MVA • CANbus, Profibus DP, Interbus S, Ethernet • Adaptation to EPICS • DAC and ADC 16 to 20 bit resolution and linearity Applications : Electromagnets and coils Superconducting magnets or short samples Resistive or capacitive loads Klystrons, lOTs, RF transmitters 60V/350OM!OkW Thyristor controlled (S£M®) I0"4, Profibus 80V/600A,50kW 5Y/30Ô* for supraconducting magnets linear technology < Sppm stability with 10 extra shims mm BROKER BIOSPIN SA • France •m %M W\. WSÊ ¥%, 34 rue de l'industrie * F-67166 Wissembourg Cedex Tél. +33 (0)3 88 73 68 00 • Fax. +33 (0)3 88 73 68 79 lOSPIN power@brukerir 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 for January and August, in English and French editions. The views expressed are not CERN necessarily those of the CERN management. Editor Christine Sutton CERN, 1211 Geneva 23, Switzerland E-mail: [email protected] Fax: +41 (0) 22 785 0247 Web: cerncourier.com COURIER Advisory board R Landua (chairman), P Sphicas, K Potter, VOLUME 44 NUMBER 3 APRIL 2004 E Lillest0l, C Detraz, H Hoffmann, R Bailey Laboratory correspondents: Argonne National Laboratory (US): D Ayres Brookhaven National Laboratory (US): P Yamin Cornell University (US): D G Cassel DESY Laboratory (Germany): Ilka Flegel, Petra Folkerts Fermi National Accelerator Laboratory (US): Judy Jackson GSI Darmstadt (Germany): G Siegert INFN (Italy): Barbara Gallavotti IHEP, Beijing (China): Tongzhou Xu Jefferson Laboratory (US): Steven Corneliussen JINR Dubna (Russia): B Starchenko KEK National Laboratory (Japan): A Maki Lawrence Berkeley Laboratory (US): Christine Celata Los Alamos National Laboratory (US): C Hoffmann ASACUSA and cold clouds p7 On the trail of quark matter p25 Molniya project wins award p33 NIKHEF Laboratory (Netherlands): Paul de Jong Novosibirsk Institute (Russia): S Eidelman Orsay Laboratory (France): Anne-Marie Lutz News 5 PSI Laboratory (Switzerland): P-R Kettle FINUDA's first results open up new window on exotic nuclei. Rutherford Appleton Laboratory (UK): Jacky Hutchinson Saclay Laboratory (France): Elisabeth Locci Superheavies extend periodic table to 115. OECD committee endorses IHEP, Serpukhov (Russia): Yu Ryabov future linear collider. ASACUSA probes the astrophysical Ice age'. Stanford Linear Accelerator Center (US): N Calder TRIUMF Laboratory (Canada): M K Craddock CERN strengthens links with AMS experiment. PPARC approves new funding for UK accelerator R&D. Produced for CERN by Institute of Physics Publishing Ltd Institute of Physics Publishing Ltd, Dirac House, Temple Back, Bristol BS16BE, UK CERN Courier Archive 9 Tel:+44 (0)117 929 7481 E-mail: [email protected] Web: iop.org Physicswatch il Publishing director Richard Roe Astrowatch Publisher Jo Nicholas 12 Art director Andrew Giaquinto Senior production editor Ruth Leopold Features Technical illustrator Alison Tovey Display advertisement manager Jonathan Baron The W and Z particles: a personal recollection 13 Recruitment advertisement manager Jayne Purdy Pierre Darriulat looks back at the discovery at CERN of the carriers Display sales Ed Jost Recruitment sales Reena Gupta of the weak force. Advertisement production Joanne Derrick, Katie Graham Product manager Claire Webber Bringing the heavens down to Earth 17 Advertising Jonathan Baron, Jayne Purdy, Ed Jost or Reena Gupta Nikolaos Mavromatos and James Pinfold explore the synergy between Tel:+44 (0)117 930 1265 E-mail: [email protected] astroparticle physics and particle physics at accelerators. Fax: +44 (0)117 930 1178 Highlights ofSIGHAD03 20 General distribution Jacques Dallemagne, CERN, 1211 Geneva 23, Switzerland. E-mail: [email protected] The challenge of low-energy hadronic cross-section data. In certain countries, to request copies or to make address changes, contact: China Chen Huaiwei, Institute of High-Energy Physics, PO Box 918, Perspectives for nuclear-physics research in Europe 22 Beijing, People's Republic of China Muhsin Harakeh andJuha Aystô review NuPECC's latest long-range plan. Germany Gabriela Heessel orVeronika Werschner, DESY, Notkestr. 85, 22603 Hamburg 52. E-mail: [email protected] Italy Loredana Rum or Anna Pennacchietti, INFN, Casella Postale Quark Matter brings heavy ions to Oakland 2255 56, 00044 Frascati, Roma UK Mark Swaisland, CLRC, Daresbury Laboratory, Keckwick Lane, Spencer Klein and Joakim Nystrand describe highlights of Quark Matter 2004.)4. Daresbury, Warrington WA4 4AD. E-mail: [email protected] US/Canada Published by Cern Courier, 6N246 Willow Drive, The challenge of the pentaquarks 299 St Charles, IL 60175. Periodical postage paid in St Charles, IL Fax: 630 377 1569. E-mail: [email protected] Volker Burkert reports from Pentaquark 2003. POSTMASTER: send address changes to: Creative Mailing Services, PO Box 1147, St Charles, IL 60174 People 33 Published by European Organization for Nuclear Research, CERN, 1211 Geneva 23, Switzerland. Tel: +41 (0) 22 767 6111 Telefax: +41 (0) 22 767 65 55 Recruitment 37 Printed by Warners (Midlands) pic, Bourne, Lincolnshire, UK Bookshelf 40 © 2004 CERN ISSN 0304-288X Viewpoint 42 Cover: A simulated collision event in the ATLAS detector, viewed along the beam pipe of the Large Hadron Collider (LHC). The event simulates the production and immediate decay of a mini black hole. This is just one example of the possibilities for exploring links between astrophysics and particle physics at colliders such as the LHC (see pl7). CERN Courier April 2004 3 Our Customers include: !RN I Li 11 Soli tate Microwave Amplifiers Pulsed or OW to 12GHz Solid State Microwave Amplifiers [NFN Complete load mismatch tolérance Unbeatable power densities (eg 1H BroadW CW in 12m mi WHERE GOOD IDE 4kW/1kW at 1.3GHZ/2.0986HZ poised in 4u reck) • Poise Width to i GANIL zuu microsecs ÎTECH • Full Built-in Test • Water Cooled Option ELEY # MILMEGA www .co.uk DESIGNERS AND MANUFACTURERS 8F HIGH POWER MICROWAVE AMPLIFIERS AND SYSTEMS Milmega Ltd, Ryde Business Park, Nicholson Road, Ryde, Isle of Wight P033 18Q UK Tel: +44(0) 1383 818005 Fax: +44(0) 1383 811521 [email protected] .on your 18 Standard Hydrogen 1 METALS & ALLOYS H Catalogue Items He 1.0079 0.090 -252.87 13 14 15 16 17 Beryllium Element Name Boron Carbon Nitrogen Oxygen Fluorine Neon 5 7 9 10 Li 1 Be V Symbol B c N 0 F Ne 6.941 10.811 14.007 15.999 20.180 Atomic weight 2.46 1.251 1.429 0.900 2076 -195.79 -182.95 -246.08 Density 3 Sodium Magnesium - Solids & Liquids (g/cm ) Gases(g/I) Aluminium Phosphorus Sulphur Chlorine Argon M.pt./B.pt.fC) 11 12 17 18 13 15 p 16 5 Ar Na Mg - Melting point (Solids & Liquids) • Boiling point (Gases) AI Si CI 22.990 30.974 32.065 35.453 39.948 0.97 1.82 1.96 3.214 1.784 97.7 650 10 12 44.2 115.2 -34.04 -185.85 Potassium Calcium Scandium Titanium Vanadium Chromium Manganese Cobalt Nickel Copper Gallium Germanium Selenium Krypton 20 21 25 27 29 0 31 32 34 35 36 Kr 19 K 22 Tj 24 28 j Br Ca Sc Qr Mn Fe Co N Cu Zn Ga Ge As Se 40.078 23 y 51.996 58.933 58.693 63.546 65.39 74.922 78.96 79.904 1.55 44.956 50.942 7.14 8.90 8.91 8.92 5.73 4.82 842 6.11 1907 1495 1455 816.9 221 1541 Rubidium Strontium Yttrium Zirconium Niobiu1910m Molybdenum Technetium Rhodium Palladium Cadmium Indium Antimony Tellurium Xenon 38 39 40 41 42 43 45 16 18 9 0 51 52 3 54 37 Rb Sr y Zr Nb Mo Tc Ru Rh Pd Cd In Sn Sb Te I Xe 87.62 88.906 92.906 95.94 101.07 102.91 106.42 107.87 118.71 121.76 127.60 126.90 2.63 4.47 8.57 10.28 a 12.37 12.45 12.02 10.49 7.31 6.70 6.24 4.94 777 1526 2477 2623 2334 1964 1554.9 961.8 231.9 630.6 449.5 113.7 2157 Barium Lutetium Hafnium Tantalum Tungsten Rhenium Osmium Gold Mercury Thallium Bismuth Polonium Astatine 55 56 71 72 73 75 79 10 13 9 74 76 81 T| 82 Rb 84 85 At Cs Ba Lu Hf Ta W Re Os Pt Au Hg Bi Po Rn 132.91 137.33 174.97 190.23 192.22 196.97 200.59 207.2 [210] [222] 3.51 9.84 22.61 22.65 19.30 13.55 11.34 727 1652 3033 2466 1064.2 -38.83 327.5 Francium ftadlum Lawrertcium Rutherford! urn Oubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Imununium Ununbium Ununquadium 8 105 106 107 108 110 111 112 114 87 Fr 103 Lr 104 Rf 109 Ra Db Sg Bh Hs Mt Ds Uuu Uub Uuq Tel + 44 1865 884440 [223] [262] [262] [266] [264} [277] [281] [272] [285] 1627 Fax + 44 1865 884460 Order on line [email protected] Visit our web site for latest www-advent-rm.com Catalogue prices £ • € • Sfr • US$ Advent Research Materials Ltd • Eynsham • Oxford • England 0X29 4JA + new stock lines Lanthanum Cerium Praseodymium Neodymium Promethium Samarium Europium Gadolinium Terbium Dysprosium Holmium Erbium Thulium Ytterbium 61 62 64 65 67 69 57 58 59 60 63 Eu 68 Er 70 La Ce Rr Nd Pm Sm Gd Tb ee Dy Ho Tm *Lanthanoids 138.91 140.12 140.91 144.24 [145] 150.36 151.96 157.25 158.93 162.50 164.93 167.26 168.93 173.04 6.146 6.689 6.64 6.80 7.264 7.353 5.244 7.901 8.219 8.551 8.795 9.066 9.321 6.57 920 795 935 1024
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