Improving naturalness in gauge mediation with nonunified messenger sectors
文献类型：期刊论文
| 作者 | Calibbi, L (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Calibbi, L; Li, TJ ; Mustafayev, A; Raza, S; Calibbi, L (reprint author), Chinese Acad Sci, Inst Theoret Phys, KITPC, Beijing 100190, Peoples R China.
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| 刊名 | PHYSICAL REVIEW D
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| 出版日期 | 2016 |
| 卷号 | 93期号:11页码:115018 |
| DOI | http://dx.doi.org/10.1103/PhysRevD.93.115018 |
| 英文摘要 | We study models of gauge-mediated supersymmetry breaking with messengers that do not belong to complete representations of grand-unified gauge groups. We show that certain setups characterized by a heavy Wino can greatly improve the fine-tuning with respect to models with unified messengers, such as minimal gauge mediation. The typical models with low-tuning feature multi-TeV superparticles, with the exception of the Higgsinos and possibly Bino and right-handed sleptons. As a consequence, the absence of signals for supersymmetry at the LHC is trivially accommodated in our framework. On the other hand, testing these models will be challenging at the LHC. We finally show that the gravitino can be a consistent candidate for cold dark matter, provided a rather low reheating temperature, if a standard thermal history of the Universe is assumed. |
| 学科主题 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/21615]  |
| 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 | Calibbi, L (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.; Calibbi, L (reprint author), Chinese Acad Sci, Inst Theoret Phys, KITPC, Beijing 100190, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Calibbi, L ,Calibbi, L,Li, TJ,et al. Improving naturalness in gauge mediation with nonunified messenger sectors[J]. PHYSICAL REVIEW D,2016,93(11):115018. |
| APA | Calibbi, L ,Calibbi, L,Li, TJ,Mustafayev, A,Raza, S,&Calibbi, L .(2016).Improving naturalness in gauge mediation with nonunified messenger sectors.PHYSICAL REVIEW D,93(11),115018. |
| MLA | Calibbi, L ,et al."Improving naturalness in gauge mediation with nonunified messenger sectors".PHYSICAL REVIEW D 93.11(2016):115018. |
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来源：理论物理研究所
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