W-boson mass anomaly from a general SU(2) L scalar multiplet
文献类型：期刊论文
| 作者 | Wu, Jiajun2; Huang, Da4; Geng, Chao-Qiang |
| 刊名 | CHINESE PHYSICS C
 |
| 出版日期 | 2023 |
| 卷号 | 47期号:6页码:63103 |
| 关键词 | VECTOR-LIKE LEPTONS OBLIQUE PARAMETERS NEUTRINO MASSES DARK-MATTER HIGGS MODELS MIXINGS SU(5) |
| ISSN号 | 1674-1137 |
| DOI | 10.1088/1674-1137/acc8bf |
| 英文摘要 | We explain the W-boson mass anomaly by introducing an W-boson mass arises at the one-loop level, which can be expressed in terms of the electroweak (EW) oblique parameters T and S at leading order. We first rederive the general formulae of T and S induced by a scalar multiplet of EW charges, confirming the results in literature. We then study several specific examples of great phenomenological interest by applying these general expressions. As a result, it is found that the model with a scalar multiplet in an T and S. However, the cases with scalars in a complex representation under T and S. We further consider the strong constraints from the perturbativity and EW global fit of the precision data and vary the isospin representation and hypercharge of the additional scalar multiplet to assess the extent of the model to solve the W-boson mass anomaly. It turns out that these constraints play important roles in setting limits on the model parameter space. We also briefly describe the collider signatures of the extra scalar multiplet, especially when it contains long-lived, heavy, highly charged states. |
| 学科主题 | Physics |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/28109]  |
| 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.UCAS, Hangzhou Inst Adv Study, Sch Fundamental Phys & Math Sci, Hangzhou 310024, Peoples R China 2.Univ Chinese Acad Sci UCAS, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Theoret Phys, CAS Key Lab Theoret Phys, Beijing 100190, Peoples R China 4.Int Ctr Theoret Phys Asia Pacific, Beijing, Peoples R China 5.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Jiajun,Huang, Da,Geng, Chao-Qiang. W-boson mass anomaly from a general SU(2) L scalar multiplet[J]. CHINESE PHYSICS C,2023,47(6):63103. |
| APA | Wu, Jiajun,Huang, Da,&Geng, Chao-Qiang.(2023).W-boson mass anomaly from a general SU(2) L scalar multiplet.CHINESE PHYSICS C,47(6),63103. |
| MLA | Wu, Jiajun,et al."W-boson mass anomaly from a general SU(2) L scalar multiplet".CHINESE PHYSICS C 47.6(2023):63103. |
入库方式： OAI收割
来源：理论物理研究所
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