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题名: Improving naturalness in gauge mediation with nonunified messenger sectors
作者: Calibbi, L ;  Li, TJ ;  Mustafayev, A ;  Raza, S
刊名: PHYSICAL REVIEW D
出版日期: 2016
卷号: 93, 期号:11, 页码:115018
学科分类: Astronomy & Astrophysics; Physics
DOI: http://dx.doi.org/10.1103/PhysRevD.93.115018
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.
文章类型: Article
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.
类目[WOS]: Astronomy & Astrophysics ;  Physics, Particles & Fields
关键词[WOS]: X U(1)(X) MODELS ;  SUPERSYMMETRY BREAKING ;  COUPLING UNIFICATION ;  SCALE ;  HIGGS ;  GRAVITINO ;  PARTICLE ;  SEARCH ;  MASSES ;  LIGHT
收录类别: SCI
项目资助者: Natural Science Foundation of China [11135003, 11275246, 11475238]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/21615
Appears in Collections:理论物理所2016年知识产出_期刊论文

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Recommended Citation:
Calibbi, L,Li, TJ,Mustafayev, A,et al. Improving naturalness in gauge mediation with nonunified messenger sectors[J]. PHYSICAL REVIEW D,2016,93(11):115018.
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