Search for SM Higgs with the ATlas detector 方亚泉 威士康辛大学麦迪逊分校 欧洲核子研究中心 Uni vers ity of Wiscons in, Madi son CERN yaquan fang@cern. ch 前沿物理工作月 北京-上海一武汉 August 29th, 2012
1 Search for SM Higgs with the ATLAS detector August 29th, 2012 方亚泉 威士康辛大学麦迪逊分校 欧洲核子研究中心 University of Wisconsin, Madison CERN yaquan.fang@cern.ch 前沿物理工作月 北京-上海-武汉
Outline LhC and atlas detector Standard Model, Higgs mechanism and its cross-section and branching ratio Show the most updated results of 2011+2012 N H→Y ●H→ZZ→4l ●H→→WW Combination of 2011+2012 ● Conclusion 2/2/2021
Outline LHC and ATLAS detector. Standard Model, Higgs Mechanism and its cross-section and branching ratio. Show the most updated results of 2011+2012 H→γγ H→ZZ→4l H→WW Combination of 2011+2012 Conclusion 2 2/2/2021
LHC Large Hadron Collider) CMS 4 Tev LHC ALICE Super protoN synchrotron: 450 Gev. SPS ATLAS proton synchrotron: 26 GeV PS u 100 meters underground, ring with radius 4.3 kilometers OFour experiment: ATLAS, CMS, ALICE, LHCb O CM energy: 2012,8TeV, 2011, 7TeV Ferney. Volto Higgs, "God Particle p(8 4 TeV 4 Tev 2012
LHC (Large Hadron Collider) 3 proton synchrotron : 26 GeV Super proton synchrotron : 450 GeV 4 TeV ❑ 100 meters underground, ring with radius 4.3 kilometers ❑Four experiment ：ATLAS，CMS, ALICE，LHCb ❑ CM energy : 2012，8 TeV, 2011, 7 TeV 4 TeV 4 TeV in 2012 Higgs, “God Particle
aTLAS detector Muon Detecto s Electromagnetic Calorimeters 回 Solenoid Forward Calor meters Barrel Toroid Had onic Calorimeters OLong: 44 meters, 12.5 meters in radius, -7000 tons (One Eiffel tower, 100 jet 747) u components built within 35 countries Muon Spectrometer, Hadronic Calorimeter Electromagnetic(EM) Calorimeter, Inner Detector, 2/2/2021
ATLAS detector 4 2/2/2021 ❑Long: 44 meters，12.5 meters in radius, ~7000 tons. (One Eiffel tower ,~100 jet 747). ❑ components built within 35 countries : Muon Spectrometer, Hadronic Calorimeter, Electromagnetic (EM) Calorimeter ，Inner Detector
The atlas collaboration 8000-scientists including 1ooggraduate students 188 countries versities and research labs ■國录■ tkat
The ATLAS Collaboration 3000 scientists including 1000 graduate students 38 countries 174 universities and research labs 5