Constraints on CP violating nucleon-nucleon interactions in gauge models from atomic electric dipole moment

He, Xiao-Gang; McKellar, Bruce

doi:10.1103/PhysRevD.46.2131

Constraints on CP violating nucleon-nucleon interactions in gauge models from atomic electric dipole moment

Xiao-Gang He
(
- Melbourne U.
)
,
Bruce McKellar
(
- Melbourne U.
)

Jan 21, 1992

28 pages

Published in:

Phys.Rev.D 46 (1992) 2131-2140

DOI:

10.1103/PhysRevD.46.2131

Report number:

UM-P-91-112,
OZ-91-22

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Abstract: (APS)

In this paper CP-violating nucleon-nucleon interactions are studied in several models. The experimental upper bounds on the atomic electric dipole moment (EDM) are used to constrain the CP-violating parameters of the underlying weak Lagrangian. We compare the constraints from this consideration with those obtained from the upper bound on the neutron EDM. We find that although the constraints from the former consideration are not yet as sensitive as the latter, in some models the constraints from both considerations are within an order of magnitude.

nucleon nucleon: interaction
interaction: nucleon nucleon
CP: violation
parametrization: constraint
atom: electric moment
n: electric moment
gauge field theory: SU(3) x SU(2) x U(1)
quantum chromodynamics: Theta parameter
Higgs particle: multiplet
multiplet: Higgs particle

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