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Wu, YL; Zhou, YF; Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
Muon anomalous magnetic moment in the standard model with two Higgs doublets
发表期刊PHYSICAL REVIEW D
关键词Changing Neutral Currents Electric-dipole Moment Quark-mass Prediction Cp Violation Electroweak Corrections 2-higgs-doublet Model Hadronic Contributions Grand Unification G-2 Experiment B->s-gamma
摘要The muon anomalous magnetic moment is investigated in the standard model with two Higgs doublets (S2HDM) motivated from spontaneous CP violation. Thus all the effective Yukawa couplings become complex. As a consequence of the nonzero phase in the couplings, the one-loop contribution from the neutral scalar bosons could be positive or negative relying on the CP phases. The interference between one- and two-loop diagrams can be constructive in a large parameter space of CP phases. This will result in a significant contribution to muon anomalous magnetic moment even in the flavor conserving process with a heavy neutral scalar boson (m(h)similar to 200 GeV) once the effective muon Yukawa coupling factor is large (\xi (mu)\ similar to 50). In general, the one-loop contributions from lepton flavor changing scalar interactions become more important. In particular, when all contributions are positive in a reasonable parameter space of CP phases, the recently reported 2.6 sigma experiment versus theory deviation can be easily explained even for a heavy scalar boson with a relatively small Yukawa coupling in the S2HDM.
2001
ISSN0556-2821
卷号64期号:11页码:-
学科领域Physics
收录类别SCI
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被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/13639
专题理论物理所科研产出_SCI论文
通讯作者Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
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GB/T 7714
Wu, YL,Zhou, YF,Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.. Muon anomalous magnetic moment in the standard model with two Higgs doublets[J]. PHYSICAL REVIEW D,2001,64(11):-.
APA Wu, YL,Zhou, YF,&Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China..(2001).Muon anomalous magnetic moment in the standard model with two Higgs doublets.PHYSICAL REVIEW D,64(11),-.
MLA Wu, YL,et al."Muon anomalous magnetic moment in the standard model with two Higgs doublets".PHYSICAL REVIEW D 64.11(2001):-.
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