Search for supersymmetry in hadronic final states using M-T2 in pp collisions at root s=7 TeV

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	Search for supersymmetry in hadronic final states using M-T2 in pp collisions at root s=7 TeV
	CMS Collaboration
刊名	JOURNAL OF HIGH ENERGY PHYSICS
	2012
期号	10
关键词	MISSING TRANSVERSE-MOMENTUM PROTON-PROTON COLLISIONS MEASURING MASSES ATLAS DETECTOR COLLIDERS SQUARKS ENERGY JETS
通讯作者	Chatrchyan, S (reprint author), Yerevan Phys Inst, Yerevan 375036, Armenia.
英文摘要	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.
学科主题	Physics
类目[WOS]	Physics, Particles & Fields
收录类别	SCI
语种	英语
WOS记录号	WOS:000310851800049
公开日期	2016-02-25
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/213380]
专题	高能物理研究所_粒子天体物理中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	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).