Standard model contribution to the electric dipole moment of the deuteron, 3H, and 3He nuclei

Nodoka Yamanaka, Emiko Hiyama

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Abstract: We calculate for the first time the electric dipole moment (EDM) of the deuteron, 3H, and 3He nuclei generated by the one-meson exchange CP-odd nuclear force in the standard model. The effective |ΔS| = 1 four-quark operators are matched to the |ΔS| = 1 standard model processes involving the CP phase of the Cabibbo-Kobayashi-Maskawa matrix at the electroweak scale and run down to the hadronic scale μ = 1 GeV according to the renormalization group evolution in the next-to-leading logarithmic order. At the hadronic scale, the hadron matrix elements are modeled in the factorization approach. We then obtain the one-meson (pion, eta meson, and kaon) exchange CP-odd nuclear force, which is the combination of the |ΔS| = 1 meson-baryon vertices which issue from the penguin operator and the hyperon-nucleon transition. From this CP-odd nuclear force, the nuclear EDM is calculated with the realistic Argonne v18 interaction and the CP-odd nuclear force using the Gaussian expansion method. It is found that the EDMs of light nuclear systems are of order O (10−31)e cm. We also estimate the standard model contribution to other hadronic CP violating observables such as the EDMs of 6Li, 9Be nuclei, and the atomic EDMs of 129Xe, 199Hg, 211Rn, and 225Ra generated through the nuclear Schiff moment. We then analyze the source of theoretical uncertainties and show some possible ways to overcome them.

Original languageEnglish
Article number67
Pages (from-to)1-50
Number of pages50
JournalJournal of High Energy Physics
Volume2016
Issue number2
DOIs
Publication statusPublished - Feb 1 2016
Externally publishedYes

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electric moments
electric dipoles
deuterons
dipole moments
nuclei
mesons
operators
eta-mesons
matrices
factorization
baryons
apexes
pions
quarks
moments
expansion
estimates
interactions

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Cite this

Standard model contribution to the electric dipole moment of the deuteron, 3H, and 3He nuclei. / Yamanaka, Nodoka; Hiyama, Emiko.

In: Journal of High Energy Physics, Vol. 2016, No. 2, 67, 01.02.2016, p. 1-50.

Research output: Contribution to journalArticle

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