ITP OpenIR  > 理论物理所2012年知识产出
Higgs decay to dark matter in low energy SUSY: is it detectable at the LHC?
Cao, JJ; Heng, ZX; Yang, JM; Zhu, JY; Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
2012
发表期刊JOURNAL OF HIGH ENERGY PHYSICS
ISSN1029-8479
期号6页码:145
摘要Due to the limited statistics so far accumulated in the Higgs boson search at the LHC, the Higgs boson property has not yet been tightly constrained and it is still allowed for the Higgs boson to decay invisibly to dark matter with a sizable branching ratio. In this work, we perform a comparative study for the Higgs decay to neutralino dark matter by considering three different low energy SUSY models: the minimal supersymmetric standard model (MSSM), the next-to-minimal supersymmetric standard models (NMSSM) and the nearly minimal supersymmetric standard model (nMSSM). Under current experimental constraints at 2 sigma level (including the muon g - 2 and the dark matter relic density), we scan over the parameter space of each model. Then in the allowed parameter space we calculate the branching ratio of the SM-like Higgs decay to neutralino dark matter and examine its observability at the LHC by considering three production channels: the weak boson fusion VV -> h, the associated production with a Z-boson pp -> hZ + X or a pair of top quarks pp -> ht (t) over bar + X. We find that in the MSSM such a decay is far below the detectable level; while in both the NMSSM and nMSSM the decay branching ratio can be large enough to be observable at the LHC. We conclude that at the LHC the interplay of detecting such an invisible decay and the visible di-photon decay may allow for a discrimination of different SUSY models.
部门归属[Cao, Junjie; Heng, Zhaoxia] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China; [Cao, Junjie] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China; [Yang, Jin Min; Zhu, Jingya] Acad Sinica, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China
关键词Supersymmetric Standard Model Root-s=7 Tev Boson Search Mssm Mass Nmssm Constraints Neutralino Collisions
学科领域Physics
资助者National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; 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] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; 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] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; 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] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; 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]
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收录类别SCI
语种英语
资助者National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; 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] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; 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] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; 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] ; National Natural Science Foundation of China (NNSFC) [10821504, 11135003, 10775039, 11075045]; 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]
WOS记录号WOS:000306418300054
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被引频次:15[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/15083
专题理论物理所2012年知识产出
通讯作者Cao, JJ (reprint author), Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.
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Cao, JJ,Heng, ZX,Yang, JM,et al. Higgs decay to dark matter in low energy SUSY: is it detectable at the LHC?[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(6):145.
APA Cao, JJ,Heng, ZX,Yang, JM,Zhu, JY,&Cao, JJ .(2012).Higgs decay to dark matter in low energy SUSY: is it detectable at the LHC?.JOURNAL OF HIGH ENERGY PHYSICS(6),145.
MLA Cao, JJ,et al."Higgs decay to dark matter in low energy SUSY: is it detectable at the LHC?".JOURNAL OF HIGH ENERGY PHYSICS .6(2012):145.
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