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题名: Probing natural SUSY from stop pair production at the LHC
作者: Cao, JJ ;  Han, CC ;  Wu, L ;  Yang, JM ;  Zhang, Y
刊名: JOURNAL OF HIGH ENERGY PHYSICS
出版日期: 2012
期号: 11, 页码:39
关键词: EVEN HIGGS BOSONS ;  HADRON COLLIDERS ;  STANDARD MODEL ;  ROOT-S=7 TEV ;  DARK-MATTER ;  ELECTROWEAK BARYOGENESIS ;  PRECISION PREDICTIONS ;  SUPERSYMMETRIC MODELS ;  ATLAS DETECTOR ;  FINAL-STATES
学科分类: Physics
通讯作者: Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
部门归属: [Cao, Junjie; Zhang, Yang] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China; [Cao, Junjie] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China; [Han, Chengcheng; Wu, Lei; Yang, Jin Min; Zhang, Yang] Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We consider the natural supersymmetry scenario in the framework of the R-parity conserving minimal supersymmetric standard model (called natural MSSM) and examine the observability of stop pair production at the LHC. We first scan the parameters of this scenario under various experimental constraints, including the SM-like Higgs boson mass, the indirect limits from precision electroweak data and B-decays. Then in the allowed parameter space we study the stop pair production at the LHC followed by the stop decay into a top quark plus a lightest neutralino or into a bottom quark plus a chargino. From detailed Monte Carlo simulations of the signals and backgrounds, we find the two decay modes are complementary to each other in probing the stop pair production, and the LHC with root s = 14 TeV and 100 fb(-1) luminosity is capable of discovering the stop predicted in natural MSSM up to 450 GeV. If no excess events were observed at the LHC, the 95% C.L. exclusion limits of the stop masses can reach around 537 GeV.
资助者: National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075015]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Project of Knowledge Innovation Program (PKIP) of Chinese Academy of Sciences [KJCX2.YW.W10]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000312197800039
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/14999
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Cao, JJ,Han, CC,Wu, L,et al. Probing natural SUSY from stop pair production at the LHC[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(11):39.
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