Naturalness, dark matter, and the muon anomalous magnetic moment in supersymmetric extensions of the standard model with a pseudo-Dirac gluino

doi:10.1016/j.nuclphysb.2017.12.012

	Naturalness, dark matter, and the muon anomalous magnetic moment in supersymmetric extensions of the standard model with a pseudo-Dirac gluino
	Li, C ; Zhu, B 1; Li, TJ
刊名	NUCLEAR PHYSICS B
	2018
卷号	927 页码:255-273
关键词	GAUGINOS PARTICLE SPHENO AXIONS BOSON LHC
ISSN号	0550-3213
DOI	10.1016/j.nuclphysb.2017.12.012
文献子类	Article
英文摘要	We study the naturalness, dark matter, and muon anomalous magnetic moment in the Supersymmetric Standard Models (SSMs) with a pseudo-Dirac gluino (PDGSSMs) from hybrid F- and D-term supersymmetry (SUSY) breakings. To obtain the observed dark matter relic density and explain the muon anomalous magnetic moment, we find that the low energy fine-tuning measures are larger than about 30 due to strong constraints from the LUX and PANDAX experiments. Thus, to study the natural PDGSSMs, we consider multi-component dark matter and then the relic density of the lightest supersymmetric particle (LSP) neutralino is smaller than the correct value. We classify our models into six kinds: (i) Case A is a general case, which has small low energy fine-tuning measure and can explain the anomalous magnetic moment of the muon; (ii) Case B with the LSP neutralino and light stau coannihilation; (iii) Case C with Higgs funnel; (iv) Case D with Higgsino LSP; (v) Case E with light stau coannihilation and Higgsino LSP; (vi) Case F with Higgs funnel and Higgsino LSP. We study these Cases in details, and show that our models can be natural and consistent with the LUX and PANDAX experiments, as well as explain the muon anomalous magnetic moment. In particular, all these cases except the stau coannihilation can even have low energy fine-tuning measures around 10. (c) 2017 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license.
学科主题	Physics
语种	英语
资助机构	National Natural Science Foundation of China [11475238, 11647601] ; National Natural Science Foundation of China [11475238, 11647601] ; Key Research Program of Frontier Science, CAS ; Key Research Program of Frontier Science, CAS
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/22747]
专题	计算平台成果
作者单位	1.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Yantai Univ, Dept Phys, Yantai 264005, Peoples R China 3.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Li, C,Zhu, B,Li, TJ. Naturalness, dark matter, and the muon anomalous magnetic moment in supersymmetric extensions of the standard model with a pseudo-Dirac gluino[J]. NUCLEAR PHYSICS B,2018,927:255-273.
APA	Li, C,Zhu, B,&Li, TJ.(2018).Naturalness, dark matter, and the muon anomalous magnetic moment in supersymmetric extensions of the standard model with a pseudo-Dirac gluino.NUCLEAR PHYSICS B,927,255-273.
MLA	Li, C,et al."Naturalness, dark matter, and the muon anomalous magnetic moment in supersymmetric extensions of the standard model with a pseudo-Dirac gluino".NUCLEAR PHYSICS B 927(2018):255-273.