Improving naturalness in gauge mediation with nonunified messenger sectors

doi:http://dx.doi.org/10.1103/PhysRevD.93.115018

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	Improving naturalness in gauge mediation with nonunified messenger sectors
	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.
刊名	PHYSICAL REVIEW D
	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
内容类型	期刊论文
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.