Experimental constraints on the nearly minimal supersymmetric standard model and implications for its phenomenology

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	Experimental constraints on the nearly minimal supersymmetric standard model and implications for its phenomenology
	Cao, Junjie; Logan, Heather E.; Yang, Jin Min; Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
刊名	PHYSICAL REVIEW D
	2009
卷号	79 期号:9 页码:-
关键词	Probe Wmap Observations Neutralino Extension Mssm
ISSN号	1550-7998
英文摘要	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.
学科主题	Physics
URL标识	查看原文
WOS记录号	WOS:000266501800003
公开日期	2012-08-02
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/5332]
专题	理论物理研究所_理论物理所1978-2010年知识产出
通讯作者	Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China
推荐引用方式 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):-.