ITP OpenIR  > SCI期刊论文
Cao, JJ; Heng, ZX; Yang, JM; Zhang, YM; Zhu, JY; Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for MSSM and NMSSM
Source PublicationJOURNAL OF HIGH ENERGY PHYSICS
Language英语
KeywordSupersymmetric Standard Model Fine-tuning Price Dark-matter Bosons Masses Sector Lep Couplings Lhc Program
AbstractMotivated by the recent LHC hints of a Higgs boson around 125 GeV, we assume a SM-like Higgs with the mass 123-127 GeV and study its implication in low energy SUSY by comparing the MSSM and NMSSM. We consider various experimental constraints at 2 sigma level (including the muon g - 2 and the dark matter relic density) and perform a comprehensive scan over the parameter space of each model. Then in the parameter space which is allowed by current experimental constraints and also predicts a SM-like Higgs in 123-127 GeV, we examine the properties of the sensitive parameters (like the top squark mass and the trilinear coupling A(t)) and calculate the rates of the di-photon signal and the VV* (V = W, Z) signals at the LHC. Our typical findings are: (i) In the MSSM the top squark and A(t) must be large and thus incur some fine-tuning, which can be much ameliorated in the NMSSM; (ii) In the MSSM a light stau is needed to enhance the di-photon rate of the SM-like Higgs to exceed its SM prediction, while in the NMSSM the di-photon rate can be readily enhanced in several ways; (iii) In the MSSM the signal rates of pp -> h -> VV* at the LHC are never enhanced compared with their SM predictions, while in the NMSSM they may get enhanced significantly; (iv) A large part of the parameter space so far survived will be soon covered by the expected XENON100(2012) sensitivity (especially for the NMSSM).
2012
ISSN1029-8479
Issue3Pages:86
Subject AreaPhysics
Indexed BySCI
Funding OrganizationNational Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Chinese Academy of Sciences [KJCX2.YW.W10] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Chinese Academy of Sciences [KJCX2.YW.W10] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Chinese Academy of Sciences [KJCX2.YW.W10] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; Specialized Research Fund for the Doctoral Program of Higher Education [20104104110001]; Chinese Academy of Sciences [KJCX2.YW.W10]
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Cited Times:256[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15149
CollectionSCI期刊论文
Corresponding AuthorCao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
Recommended Citation
GB/T 7714
Cao, JJ,Heng, ZX,Yang, JM,et al. A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for MSSM and NMSSM[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(3):86.
APA Cao, JJ,Heng, ZX,Yang, JM,Zhang, YM,Zhu, JY,&Cao, JJ .(2012).A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for MSSM and NMSSM.JOURNAL OF HIGH ENERGY PHYSICS(3),86.
MLA Cao, JJ,et al."A SM-like Higgs near 125 GeV in low energy SUSY: a comparative study for MSSM and NMSSM".JOURNAL OF HIGH ENERGY PHYSICS .3(2012):86.
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