Cancellations Between Two-Loop Contributions to the Electron Electric Dipole Moment with a CP-Violating Higgs Sector
文献类型：期刊论文
| 作者 | Bian, LG; Liu, T; Shu, J
|
| 刊名 | PHYSICAL REVIEW LETTERS
 |
| 出版日期 | 2015 |
| 卷号 | 115期号:2页码:21801 |
| 通讯作者 | Shu, J (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China. |
| 英文摘要 | We present a class of cancellation conditions for suppressing the total contributions of Barr-Zee diagrams to the electron electric dipole moment (eEDM). Such a cancellation is of particular significance after the new eEDM upper limit was released by the ACME Collaboration, which strongly constrains the allowed magnitude of CP violation in Higgs couplings and hence the feasibility of electroweak baryogenesis (EWBG). Explicitly, if both the CP-odd Higgs-photon-photon (Z boson) and the CP-odd Higgs-electron-positron couplings are turned on, a cancellation may occur either between the contributions of a CP-mixing Higgs boson, with the other Higgs bosons being decoupled, or between the contributions of CP-even and CP-odd Higgs bosons. With a cancellation, large CP violation in the Higgs sector is still allowed, yielding successful EWBG. The reopened parameter regions would be probed by future neutron, mercury EDM measurements, and direct measurements of Higgs CP properties at the Large Hadron Collider Run II and future colliders. |
| 学科主题 | Physics |
| 类目[WOS] | Physics, Multidisciplinary |
| 关键词[WOS] | STANDARD MODEL ; ATLAS DETECTOR ; BOSON-EXCHANGE ; NEUTRON ; PHENOMENOLOGY ; MSSM ; TOOL ; LHC |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.itp.ac.cn/handle/311006/20929]  |
| 专题 | 理论物理研究所_理论物理所1978-2010年知识产出 |
| 推荐引用方式 GB/T 7714 | Bian, LG,Liu, T,Shu, J. Cancellations Between Two-Loop Contributions to the Electron Electric Dipole Moment with a CP-Violating Higgs Sector[J]. PHYSICAL REVIEW LETTERS,2015,115(2):21801. |
| APA | Bian, LG,Liu, T,&Shu, J.(2015).Cancellations Between Two-Loop Contributions to the Electron Electric Dipole Moment with a CP-Violating Higgs Sector.PHYSICAL REVIEW LETTERS,115(2),21801. |
| MLA | Bian, LG,et al."Cancellations Between Two-Loop Contributions to the Electron Electric Dipole Moment with a CP-Violating Higgs Sector".PHYSICAL REVIEW LETTERS 115.2(2015):21801. |
入库方式： OAI收割
来源：理论物理研究所
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