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Cao, Junjie; Logan, Heather E.; Yang, Jin Min; Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
Experimental constraints on the nearly minimal supersymmetric standard model and implications for its phenomenology
发表期刊PHYSICAL REVIEW D
关键词Probe Wmap Observations Neutralino Extension Mssm
摘要We examine various direct and indirect experimental constraints on the nearly minimal supersymmetric standard model (nMSSM) and obtain the following observations: (i) Current experiments stringently constrain the parameter space, setting a range of 1 similar to 37 GeV for the lightest neutralino (chi) over tilde (0)(1), 30 similar to 140 GeV (1 similar to 250 GeV) for the lightest CP-even (CP-odd) Higgs boson, and 1.5 similar to 10 for tan beta; (ii) To account for the dark matter relic density, besides the s-channel exchange of a Z boson, the s-channel exchange of a light A(1) (the lightest CP-odd Higgs boson) can also play an important role in lightest supersymmetric particle annihilation. Compared with the Z-exchange annihilation channel, the A1-exchange channel is more favored by muon g - 2 data and allows much broader regions for the parameters; (iii) In a large part of the allowed parameter space the SM-like Higgs boson may dominantly decay to (chi) over tilde (1)(0)(chi) over tilde (1)(0) or A(1)A(1) and the conventional visible decays (e. g. into bottom quarks) are severely suppressed.
2009
ISSN1550-7998
卷号79期号:9页码:-
学科领域Physics
收录类别SCI
项目资助者Natural Sciences and Engineering Research Council of Canada; China NSFC[10505007, 10821504, 10725526, 10635030]; HASTIT[2009HASTIT004] ; Natural Sciences and Engineering Research Council of Canada; China NSFC[10505007, 10821504, 10725526, 10635030]; HASTIT[2009HASTIT004] ; Natural Sciences and Engineering Research Council of Canada; China NSFC[10505007, 10821504, 10725526, 10635030]; HASTIT[2009HASTIT004] ; Natural Sciences and Engineering Research Council of Canada; China NSFC[10505007, 10821504, 10725526, 10635030]; HASTIT[2009HASTIT004]
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被引频次:31[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/311006/5332
专题理论物理所科研产出_SCI论文
通讯作者Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
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GB/T 7714
Cao, Junjie,Logan, Heather E.,Yang, Jin Min,et al. Experimental constraints on the nearly minimal supersymmetric standard model and implications for its phenomenology[J]. PHYSICAL REVIEW D,2009,79(9):-.
APA Cao, Junjie,Logan, Heather E.,Yang, Jin Min,&Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.(2009).Experimental constraints on the nearly minimal supersymmetric standard model and implications for its phenomenology.PHYSICAL REVIEW D,79(9),-.
MLA Cao, Junjie,et al."Experimental constraints on the nearly minimal supersymmetric standard model and implications for its phenomenology".PHYSICAL REVIEW D 79.9(2009):-.
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