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Title: Reexamination of the standard model nucleon electric dipole moment

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Journal Article: Publisher's Accepted Manuscript
Journal Name:
Physical Review C
Additional Journal Information:
Journal Volume: 91; Journal Issue: 2; Journal ID: ISSN 0556-2813
American Physical Society
Country of Publication:
United States

Citation Formats

Seng, Chien-Yeah. Reexamination of the standard model nucleon electric dipole moment. United States: N. p., 2015. Web. doi:10.1103/PhysRevC.91.025502.
Seng, Chien-Yeah. Reexamination of the standard model nucleon electric dipole moment. United States. doi:10.1103/PhysRevC.91.025502.
Seng, Chien-Yeah. 2015. "Reexamination of the standard model nucleon electric dipole moment". United States. doi:10.1103/PhysRevC.91.025502.
title = {Reexamination of the standard model nucleon electric dipole moment},
author = {Seng, Chien-Yeah},
abstractNote = {},
doi = {10.1103/PhysRevC.91.025502},
journal = {Physical Review C},
number = 2,
volume = 91,
place = {United States},
year = 2015,
month = 2

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevC.91.025502

Citation Metrics:
Cited by: 12works
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Web of Science

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  • We compute the electric dipole moment (EDM) of the {ital W} boson in the two-Higgs-doublet extension of the standard model. The calculation is performed at two loops with all the relevant Feynman diagrams included. We find that the {ital W}-boson EDM may be as large as 10{sup {minus}21}--10{sup {minus}20}{ital e} cm, for reasonable masses of the top quark and Higgs boson. Our results disagree with previous calculations done by He and McKellar and Vendramin.
  • We present a complete three-loop calculation of the electric dipole moment of the u and d quarks in the standard model. For the d quark, more relevant for the experimentally important neutron electric dipole moment, we find cancellations which lead to an order of magnitude suppression compared with previous estimates. {copyright} {ital 1997} {ital The American Physical Society}
  • This paper reports on dynamical breaking of chiral symmetry in QCD which is a potential source of CP violation in the flavor diagonal Higgs sector of the standard model and can lead to a neutron electric dipole moment of the size reported in recent experiments, provided the mass of the Higgs is constrained by {ital m{sub H}} {approx lt} 42 GeV.
  • We analyze two-loop gluino corrections to the neutron electric dipole moment (EDM) in the minimal supersymmetry extension of the standard model (MSSM). The dependence of two-loop corrections on the relevant CP violating phases differs from that of the one-loop contributions, and there is a region in the parameter space where the two-loop contributions are comparable with the one-loop contributions. Our numerical results show that the two-loop corrections can be as large as 30% of the one-loop results.
  • The electric dipole moment (EDM) of the top quark is calculated in a model with a vector like multiplet which mixes with the third generation in an extension of the minimal supersymmetric standard model. Such mixings allow for new CP violating phases. Including these new CP phases, the EDM of the top in this class of models is computed. The top EDM arises from loops involving the exchange of the W, the Z as well as from the exchange involving the charginos, the neutralinos, the gluino, and the vector like multiplet and their superpartners. The analysis of the EDM ofmore » the top is more complicated than for the light quarks because the mass of the external fermion, in this case the top quark mass cannot be ignored relative to the masses inside the loops. A numerical analysis is presented and it is shown that the top EDM could be close to 10{sup -19} ecm consistent with the current limits on the EDM of the electron, the neutron and on atomic EDMs. A top EDM of size 10{sup -19} ecm could be accessible in collider experiments such as the International Linear Collider.« less