Experimental constraints on the nearly minimal supersymmetric standard model and implications for its phenomenology
文献类型：期刊论文
| 作者 | 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
 |
| 出版日期 | 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 |
| 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):-. |
入库方式： OAI收割
来源：理论物理研究所
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