Naturalness, dark matter, and the muon anomalous magnetic moment in supersymmetric extensions of the standard model with a pseudo-Dirac gluino
文献类型：期刊论文
| 作者 | Li, C; Zhu, B2; Li, TJ
|
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 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 |
| 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 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/22966]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 计算平台成果 |
| 作者单位 | 1.Univ Chinese Acad Sci, Sch Phys Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Theoret Phys, Key Lab Theoret Phys, Beijing 100190, Peoples R China 3.Yantai Univ, Dept Phys, Yantai 264005, 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. |
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来源：理论物理研究所
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