Constraining CP-phases in SUSY: An interplay of muon/electron g-2 and electron EDM
文献类型：期刊论文
| 作者 | Li, Song1; Xiao, Yang1; Yang, Jin Min1 |
| 刊名 | NUCLEAR PHYSICS B
 |
| 出版日期 | 2022 |
| 卷号 | 974页码:115629 |
| 关键词 | DIPOLE MOMENT CONSTRAINTS ANOMALOUS MAGNETIC-MOMENT NEUTRON VIOLATION MSSM MUON |
| ISSN号 | 0550-3213 |
| DOI | 10.1016/j.nuclphysb.2021.115629 |
| 英文摘要 | The minimal supersymmetric standard model (MSSM) with complex parameters can contribute sizably to muon/electron anomalous magnetic dipole moment (g -2) and electric dipole moment (EDM). The electron g - 2 interplays with electron EDM; the muon g - 2 can also interplay with electron EDM assuming the universality between smuon and selectron masses, either of which can constrain the relevant CP-phases in the MSSM. In this work, we first use such an interplay to derive an approximate analytical upper limit on the relevant CP-phase. Then we extensively scan the parameter space to obtain more accurate upper limits. We obtain the following observations: (i) The muon g - 2 in the 2 sigma range combined with the electron EDM upper limit (assuming the universality between smuon and selectron masses) typically constrains the relevant CP-phase under 1.9 x 10-5(rad); (ii) The electron g - 2 in the 2 sigma range (Berkeley) interplays with the electron EDM upper limit (without assuming the universality between smuon and selectron masses) constrains the relevant CP-phase under 3.9 x 10-6(rad) (also requiring muon g - 2 in the allowed 2 sigma range). We also find some special cancellations in the parameter space which can relax the constraints by a couple of orders. Such stringent limits on CP-phases may pose a challenge for model building of SUSY, i.e., how to naturally suppress these phases. (c) 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). Funded by SCOAP3. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/27707]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 作者单位 | 1.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Song,Xiao, Yang,Yang, Jin Min. Constraining CP-phases in SUSY: An interplay of muon/electron g-2 and electron EDM[J]. NUCLEAR PHYSICS B,2022,974:115629. |
| APA | Li, Song,Xiao, Yang,&Yang, Jin Min.(2022).Constraining CP-phases in SUSY: An interplay of muon/electron g-2 and electron EDM.NUCLEAR PHYSICS B,974,115629. |
| MLA | Li, Song,et al."Constraining CP-phases in SUSY: An interplay of muon/electron g-2 and electron EDM".NUCLEAR PHYSICS B 974(2022):115629. |
入库方式： OAI收割
来源：理论物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。