TY - JOUR
T1 - Neutron electric dipole moment from electric and chromoelectric dipole moments of quarks
AU - Pospelov, Maxim E
AU - Ritz, A.
PY - 2001/8/15
Y1 - 2001/8/15
N2 - Using QCD sum rules, we calculate the electric dipole moment of the neutron dn induced by all CP violating operators up to dimension five. We find that the chromoelectric dipole moments of quarks d̃i, including that of the strange quark, provide significant contributions comparable in magnitude to those induced by the quark electric dipole moments di. When the theta terra is removed via the Peccei-Quinn symmetry, the strange quark contribution is also suppressed and dn = (1 ± 0.5) {0.55e(d̃d + 0.5d̃u) + 0.7 (dd - 0.25du)}.
AB - Using QCD sum rules, we calculate the electric dipole moment of the neutron dn induced by all CP violating operators up to dimension five. We find that the chromoelectric dipole moments of quarks d̃i, including that of the strange quark, provide significant contributions comparable in magnitude to those induced by the quark electric dipole moments di. When the theta terra is removed via the Peccei-Quinn symmetry, the strange quark contribution is also suppressed and dn = (1 ± 0.5) {0.55e(d̃d + 0.5d̃u) + 0.7 (dd - 0.25du)}.
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U2 - 10.1103/PhysRevD.63.073015
DO - 10.1103/PhysRevD.63.073015
M3 - Article
AN - SCOPUS:0034884277
SN - 0556-2821
VL - 63
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
IS - 7
M1 - 073015
ER -