Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models
文献类型：期刊论文
| 作者 | Yang, Jin Min; Cao, Junjie; Heng, Zhaoxia; Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China |
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2010 |
| 期号 | 11页码:- |
| 关键词 | Supersymmetric Standard Model e(+)e(-) Collisions Opal Detector Search Lep Colliders Mssm Phenomenology Parameters Neutralino |
| ISSN号 | 1126-6708 |
| 英文摘要 | Various new physics models predict a light CP-odd Higgs boson (labeled as a) and open up new decay modes for Z-boson, such as Z -> (f) over bar fa, Z -> a gamma and Z -> aaa, which could be explored at the GigaZ option of the ILC. In this work we investigate these rare decays in several new physics models, namely the type-II two Higgs doublet model (type-II 2HDM), the lepton-specific two Higgs doublet model (L2HDM), the nearly minimal supersymetric standard model (nMSSM) and the next-to-minimal supersymmetric standard model (NMSSM). We find that in the parameter space allowed by current experiments, the branching ratios can reach 10(-4) for Z -> (f) over bar fa (f = b,tau), 10(-9) for Z -> a gamma and 10(-3) for Z -> aaa, which implies that the decays Z -> (f) over bar fa and Z -> aaa may be accessible at the GigaZ option. Moreover, since different models predict different patterns of the branching ratios, the measurement of these rare decays at the GigaZ may be utilized to distinguish the models. |
| 学科主题 | Physics |
| URL标识 | 查看原文 |
| WOS记录号 | WOS:000284962600050 |
| 公开日期 | 2012-08-02 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/5024]  |
| 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 | Yang, Jin Min,Cao, Junjie,Heng, Zhaoxia,et al. Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models[J]. JOURNAL OF HIGH ENERGY PHYSICS,2010(11):-. |
| APA | Yang, Jin Min,Cao, Junjie,Heng, Zhaoxia,&Cao, JJ , Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China.(2010).Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models.JOURNAL OF HIGH ENERGY PHYSICS(11),-. |
| MLA | Yang, Jin Min,et al."Rare Z-decay into light CP-odd Higgs bosons: a comparative study in different new physics models".JOURNAL OF HIGH ENERGY PHYSICS .11(2010):-. |
入库方式： OAI收割
来源：理论物理研究所
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