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Cancellations Between Two-Loop Contributions to the Electron Electric Dipole Moment with a CP-Violating Higgs Sector
Bian, LG; Liu, T; Shu, J; Shu, J (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
2015
发表期刊PHYSICAL REVIEW LETTERS
卷号115期号:2页码:21801
文章类型Article
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.
学科领域Physics
资助者start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology
DOIhttp://dx.doi.org/10.1103/PhysRevLett.115.021801
关键词[WOS]STANDARD MODEL ; ATLAS DETECTOR ; BOSON-EXCHANGE ; NEUTRON ; PHENOMENOLOGY ; MSSM ; TOOL ; LHC
收录类别SCI
语种英语
资助者start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology ; start-up fund at the Hong Kong University of Science and Technology
WOS类目Physics, Multidisciplinary
引用统计
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/20929
专题理论物理所SCI论文
通讯作者Shu, J (reprint author), Chinese Acad Sci, State Key Lab Theoret Phys, Beijing 100190, Peoples R China.
推荐引用方式
GB/T 7714
Bian, LG,Liu, T,Shu, J,et al. 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,&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.
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