Asymmetric origin for gravitino relic density in the hybrid gravity-gauge mediated supersymmetry breaking
文献类型：期刊论文
| 作者 | Li, TJ
|
| 刊名 | JOURNAL OF HIGH ENERGY PHYSICS
 |
| 出版日期 | 2012 |
| 期号 | 10页码:150 |
| 关键词 | FERMION-NUMBER VIOLATION DARK-MATTER COSMOLOGICAL BARYON MU-PROBLEM PARTICLE UNIVERSE MODELS LEPTOGENESIS UNIFICATION SYMMETRY |
| ISSN号 | 1029-8479 |
| 通讯作者 | Kang, ZF (reprint author), Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| 英文摘要 | We propose the hybrid gravity-gauge mediated supersymmetry breaking where the gravitino mass is about several GeV. The strong constraints on supersymmetry viable parameter space from the CMS and ATLAS experiments at the LHC can be relaxed due to the heavy colored supersymmetric particles, and it is consistent with null results in the dark matter (DM) direct search experiments such as XENON100. In particular, the possible maximal flavor and CP violations from the relatively small gravity mediation may naturally account for the recent LHCb anomaly. In addition, because the gravitino mass is around the asymmetric DM mass, we propose the asymmetric origin of the gravitino relic density and solve the cosmological coincident problem on the DM and baryon densities Omega(DM) : Omega(B) approximate to 5 : 1. The gravitino relic density arises from asymmetric metastable particle (AMP) late decay. However, we show that there is no AMP candidate in the minimal supersymmetric Standard Model (SM) due to the robust gaugino/Higgsino mediated washout effects. Interestingly, AMP can be realized in the well motivated supersymmetric SMs with vector-like particles or continuous U(1)(R) symmetry. Especially, the lightest CP-even Higgs boson mass can be lifted in the supersymmetric SMs with vector-like particles. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| 资助信息 | Natural Science Foundation of China [10821504, 11075194, 11135003, 11275246]; DOE [DE-FG03-95-Er-40917] |
| 原文出处 | http://dx.doi.org/10.1007/JHEP10(2012)150 |
| 语种 | 英语 |
| WOS记录号 | WOS:000310851300049 |
| 公开日期 | 2014-04-25 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/15020]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Li, TJ. Asymmetric origin for gravitino relic density in the hybrid gravity-gauge mediated supersymmetry breaking[J]. JOURNAL OF HIGH ENERGY PHYSICS,2012(10):150. |
| APA | Li, TJ.(2012).Asymmetric origin for gravitino relic density in the hybrid gravity-gauge mediated supersymmetry breaking.JOURNAL OF HIGH ENERGY PHYSICS(10),150. |
| MLA | Li, TJ."Asymmetric origin for gravitino relic density in the hybrid gravity-gauge mediated supersymmetry breaking".JOURNAL OF HIGH ENERGY PHYSICS .10(2012):150. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。