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Muon anomalous magnetic moment in the standard model with two Higgs doublets
Wu, YL; Zhou, YF; Wu, YL , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.
2001
发表期刊PHYSICAL REVIEW D
ISSN0556-2821
卷号64期号:11页码:-
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.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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
学科领域Physics
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收录类别SCI
WOS记录号WOS:000172450600080
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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1978-2010年知识产出
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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