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Li, C; Zhu, B1; Li, TJ
Naturalness, dark matter, and the muon anomalous magnetic moment in supersymmetric extensions of the standard model with a pseudo-Dirac gluino
Source PublicationNUCLEAR PHYSICS B
Language英语
KeywordGAUGINOS PARTICLE SPHENO AXIONS BOSON LHC
AbstractWe 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.
2018
ISSN0550-3213
Volume927Pages:255-273
Subject AreaPhysics
MOST Discipline CataloguePhysics, Particles & Fields
DOI10.1016/j.nuclphysb.2017.12.012
Indexed BySCIE
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Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/22966
Collection理论物理所科研产出_SCI论文
Affiliation1.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
Recommended Citation
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.
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