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Search for supersymmetry in hadronic final states using M-T2 in pp collisions at root s=7 TeV
CMS Collaboration
2012
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
期号10
通讯作者Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
摘要A search for supersymmetry or other new physics resulting in similar final states is presented using a data sample of 4.73 fb(-1) of pp collisions collected at root s = 7 TeV with the CMS detector at the LHC. Fully hadronic final states are selected based on the variable M-T2, an extension of the transverse mass in events with two invisible particles. Two complementary studies are performed. The first targets the region of parameter space with medium to high squark and gluino masses, in which the signal can be separated from the standard model backgrounds by a tight requirement on M-T2. The second is optimized to be sensitive to events with a light gluino and heavy squarks. In this case, the M-T2 requirement is relaxed, but a higher jet multiplicity and at least one b-tagged jet are required. No significant excess of events over the standard model expectations is observed. Exclusion limits are derived for the parameter space of the constrained minimal supersymmetric extension of the standard model, as well as on a variety of simplified model spectra.
关键词MISSING TRANSVERSE-MOMENTUM PROTON-PROTON COLLISIONS MEASURING MASSES ATLAS DETECTOR COLLIDERS SQUARKS ENERGY JETS
学科领域Physics
DOI10.1007/JHEP10(2012)018
收录类别SCI
语种英语
WOS类目Physics, Particles & Fields
WOS记录号WOS:000310851800049
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被引频次:26[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213380
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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CMS Collaboration. Search for supersymmetry in hadronic final states using M-T2 in pp collisions at root s=7 TeV[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(10).
APA CMS Collaboration.(2012).Search for supersymmetry in hadronic final states using M-T2 in pp collisions at root s=7 TeV.JOURNAL OF HIGH ENERGY PHYSICS(10).
MLA CMS Collaboration."Search for supersymmetry in hadronic final states using M-T2 in pp collisions at root s=7 TeV".JOURNAL OF HIGH ENERGY PHYSICS .10(2012).
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