INDUCED-THETA CONTRIBUTION TO THE NEUTRON ELECTRIC-DIPOLE MOMENT

We study the CP-violating theta-term in QCD induced by the renormalization-group evolution of the chromoelectric dipole moments of gluons and heavy quarks. It is pointed out that this renormalization-group effect makes the neutron electric dipole moment from the theta-term at the hadronic scale dominate over that from other contributions in a large class of models without a Peccei-Quinn symmetry.
Publisher
AMERICAN PHYSICAL SOC
Issue Date
1991-10
Language
ENG
Keywords

STRONG-CP PROBLEM; HIGGS-BOSON-EXCHANGE; VIOLATION; MODELS; QUARK; CONSERVATION; OPERATORS; DIMENSION; SEARCH; AXION

Citation

PHYSICAL REVIEW D, v.44, no.7, pp.2196 - 2199

ISSN
0556-2821
DOI
10.1103/PhysRevD.44.2196
URI
http://hdl.handle.net/10203/65647
Appears in Collection
PH-Journal Papers(저널논문)
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