中国的LHC合作

very powerful detectors
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LHC实验－空前范围的国际合作 LHC
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LHC实验国际合作的规模：以ATLAS合作组为例
ATLAS Collaboration
34 Countries 151 Institutions 1770 Scientific Authors
Longstanding partnership with Chinese teams since the beginning (R&D started in 1990)
10.5 1010
2 1
2007年
p-p Pb-Pb 2.76(TeV/u) 2 1027 0.1 7.5
最大束流能量（TeV） 7.0
）
1.0 1034
0.1 7.5
16103
16103
6.7 1200 177.4/u
10
9.4 107
26.659
4
周长(km)
LHC
p p
•
Albany, Alberta, NIKHEF Amsterdam, Ankara, LAPP Annecy, Argonne NL, Arizona, UT Arlington, Athens, NTU Athens, Baku, IFAE Barcelona, Belgrade, Bergen, Berkeley LBL and UC, Bern, Birmingham, Bonn, Boston, Brandeis, Bratislava/SAS Kosice, Brookhaven NL, Bucharest, Cambridge, Carleton, Casablanca/Rabat, CERN, Chinese Cluster, Chicago, Clermont-Ferrand, Columbia, NBI Copenhagen, Cosenza, INP Cracow, FPNT Cracow, Dortmund, JINR Dubna, Duke, Frascati, Freiburg, Geneva, Genoa, Glasgow, LPSC Grenoble, Technion Haifa, Hampton, Harvard, Heidelberg, Hiroshima, Hiroshima IT, Indiana, Innsbruck, Iowa SU, Irvine UC, Istanbul Bogazici, KEK, Kobe, Kyoto, Kyoto UE, Lancaster, Lecce, Lisbon LIP, Liverpool, Ljubljana, QMW London, RHBNC London, UC London, Lund, UA Madrid, Mainz, Manchester, Mannheim, CPPM Marseille, Massachusetts, MIT, Melbourne, Michigan, Michigan SU, Milano, Minsk NAS, Minsk NCPHEP, Montreal, FIAN Moscow, ITEP Moscow, MEPhI Moscow, MSU Moscow, Munich LMU, MPI Munich, Nagasaki IAS, Naples, Naruto UE, New Mexico, Nijmegen, BINP Novosibirsk, Ohio SU, Okayama, Oklahoma, LAL Orsay, Oslo, Oxford, Paris VI and VII, Pavia, Pennsylvania, Pisa, Pittsburgh, CAS Prague, CU Prague, TU Prague, IHEP Protvino, Ritsumeikan, UFRJ Rio de Janeiro, Rochester, Rome I, Rome II, Rome III, Rutherford Appleton Laboratory, DAPNIA Saclay, Santa Cruz UC, Sheffield, Shinshu, Siegen, Simon Fraser Burnaby, Southern Methodist Dallas, NPI Petersburg, Stockholm, KTH Stockholm, Stony Brook, Sydney, AS Taipei, Tbilisi, Tel Aviv, Thessaloniki, Tokyo ICEPP, Tokyo MU, Tokyo UAT, Toronto, TRIUMF, Tsukuba, Tufts, Udine, Uppsala, Urbana UI, Valencia, UBC Vancouver, Victoria, Washington, Weizmann Rehovot, Wisconsin, Wuppertal, Yale, Yerevan
中国的LHC合作
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内容提要
1. LHC强子对撞机 2. LHC实验计划： （ATLAS,CMS,LHCb,ALICE) 3. 中国参加LHC合作的各实验组现 状和未来计划 4. 结束语
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大型强子对撞机LHC计划的总体情况
1993年10月美国参众两院联席会议表决停建 SSC， 1994年圣诞节前夕CERN理事会通过了建造 LHC计划。这一行动强烈反映了欧洲科学家的自信， 也给国际高能界带来了希望。 欧洲人从SSC的失败中吸取了教训，他们扩大 合作、精心设计、精心管理、精心施工，使LHC的 投资总额压缩到18亿美元；他们把合作扩大到全世 界，当然，也就把实验的负担分摊到了全世界。欧 洲人重新站到了实验高能物理的前列。
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超级强子对撞机（LHC）及其实器，计划于2007年建成
LHC 主要设计指标
物理运行开始时间
粒子对撞模式 亮度 （cm s 103） 能散 （ 束流长度(cm) 束流半径(mm) 亮度寿命(hr) 加速周期(s) 注入能量(GeV) 每个束团粒子数 450.0
Start : Summer 2007
LHCb : pp, B-
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Event rate in ATLAS : N=Lx (pp) 109 interactions/s Mostly soft ( low pT ) events Interesting hard (high-pT ) events are rare
Tevatron/Fermilab)
s = 14 TeV
(7 times higher than
search for new massive particles up to m ~ 5 TeV
(>102 higher than Tevatron/Fermilab)
• Ldesign = 1034 cm-2 s-1
search for rare processes with small s (N = Ls ) ATLAS and CMS : pp, general purpose 27 km ring used for e+e- LEP machine in 1989-2000
ALICE : heavy ions