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DARK MATTER IN THE MSSM AND ITS SINGLET EXTENSION
Yang, Jin Min; Yang, JM , Henan Normal Univ, Coll Phys & Informat Engn, Xinxiang 453007, Peoples R China
2010
发表期刊MODERN PHYSICS LETTERS A
ISSN0217-7323
卷号25期号:41225页码:976-982
摘要We briefly review the supersymmetric explanation for the cosmic dark matter. Although the neutralino in the minimal supersymmetric model (MSSM), the next-to-minimal supersymmetric model (NMSSM) and the nearly minimal supersymmetric model (nMSSM) can naturally explain the dark matter relic density, the PAMELA result can hardly be explained in these popular models. In the general singlet extension of the MSSM,both the PAMELA result and the relic density can be explained by the singlino-like neutralino. Such singlino-like neutralinos annihilate into the singlet-like Higgs bosons, which are light enough to decay dominantly to muons or electrons, and the annihilation cross section can be greatly enhanced by the Sommerfeld effect via exchanging alight CP-even singlet-like Higgs boson. In this scenario, in order to meet the stringent LEP constraints, the SM-like Higgs boson tends to decay into the singlet Higgs pairs instead of b (b) over bar and consequently it will give a multi-muon signal h(SM) -> aa -> 4 mu or h(SM) -> hh -> 4a -> 8 mu at the LHC.
部门归属[Yang, JM] Henan Normal Univ, Coll Phys & Informat Engn, Xinxiang 453007, Peoples R China; [Yang, JM] Acad Sinica, Inst Theoret Phys, Beijing 100190, Peoples R China
关键词Supersymmetric Standard Model Cosmic-ray Positron Higgs Sector Excess
学科领域Physics
资助者National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030]
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收录类别SCI
资助者National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030] ; National Natural Science Foundation of China[10821504, 10725526, 10635030]
WOS记录号WOS:000276973900013
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被引频次:3[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/311006/5122
专题理论物理所SCI论文
通讯作者Yang, JM , Henan Normal Univ, Coll Phys & Informat Engn, Xinxiang 453007, Peoples R China
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Yang, Jin Min,Yang, JM , Henan Normal Univ, Coll Phys & Informat Engn, Xinxiang 453007, Peoples R China. DARK MATTER IN THE MSSM AND ITS SINGLET EXTENSION[J]. MODERN PHYSICS LETTERS A,2010,25(41225):976-982.
APA Yang, Jin Min,&Yang, JM , Henan Normal Univ, Coll Phys & Informat Engn, Xinxiang 453007, Peoples R China.(2010).DARK MATTER IN THE MSSM AND ITS SINGLET EXTENSION.MODERN PHYSICS LETTERS A,25(41225),976-982.
MLA Yang, Jin Min,et al."DARK MATTER IN THE MSSM AND ITS SINGLET EXTENSION".MODERN PHYSICS LETTERS A 25.41225(2010):976-982.
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