Full QCD calculation of neutron electric dipole moment with the external electric field method

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dc.creatorShintani, E.
dc.creatorAoki, S.
dc.creatorKuramashi, Y.
dc.date2008-03-06
dc.date2008-07-22
dc.date.accessioned2026-07-07T12:14:15Z
dc.date.available2026-07-07T12:14:15Z
dc.descriptionWe have calculated the neutron electric dipole moment (NEDM) in the presence of the CP violating $θ$ term in lattice QCD with 2-flavor dynamical clover quarks, using the external electric field method. Accumulating a large number of statistics by the averages over 16 different source points and over forward and backward nucleon propagators, we have obtained non-zero signals of neutron and proton EDM beyond one standard deviation at each quark mass in full QCD. We have investigated the quark mass dependence of nucleon EDM in full QCD, and have found that nucleon EDM in full QCD does not decrease toward the chiral limit, as opposed to the theoretical expectation. We briefly discuss possible reasons for this behavior.
dc.description27 pages, 15 figures, 2 tables, reference added, tyops corrected, published version
dc.identifierhttps://arxiv.org/abs/0803.0797
dc.identifierhttp://arxiv.org/abs/0803.0797
dc.identifierPhys.Rev.D78:014503,2008
dc.identifierdoi:10.1103/PhysRevD.78.014503
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211130
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.titleFull QCD calculation of neutron electric dipole moment with the external electric field method
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