Larger Higgs Exchange Terms in the Neutron Electric Dipole Moment

Nov 6, 1989
14 pages
Published in:
  • Phys.Rev.Lett. 63 (1989) 2333
Report number:
  • UTTG-30-89

Citations per year

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Abstract: (APS)
The neutron electric dipole moment (dn) due to Higgs-boson exchange is reconsidered, now without assuming that Higgs-boson exchange is solely responsible for KL0→2π. The dominant contribution to dn arises from a three-gluon operator, produced in integrating out top quarks and neutral Higgs bosons. The estimated results together with current experimental bounds on dn show, even for the largest plausible Higgs-boson masses, that CP is not maximally violated in neutral-Higgs-boson exchange.
  • CP: violation
  • n: electric moment
  • Higgs particle: exchange
  • K0(L): nonleptonic decay
  • top
  • CKM matrix matrix
  • gluon: operator
  • quantum chromodynamics
  • renormalization group
  • Feynman graph: higher-order
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