Reanalysis of the neutron electric dipole moment in Higgs models of CP-violation

1990 ◽  
Vol 47 (4) ◽  
pp. 663-668
Author(s):  
P. B. Pal ◽  
T. N. Pham
Keyword(s):  
Dipole Moment ◽  
Cp Violation ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Neutron Electric Dipole Moment

CP VIOLATION IN η → μ+μ−

1990 ◽  
Vol 05 (27) ◽  
pp. 2271-2280 ◽  
Author(s):  
XIAO-GANG HE ◽  
BRUCE H. J. McKELLAR ◽  
PAUL K. PALLAGHY
Keyword(s):  
Dipole Moment ◽  
Cp Violation ◽  
Gauge Group ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Upper Bound ◽  
Neutron Electric Dipole Moment

We investigate a CP violating observable, the μ-polarization, in η → μ+μ− in several models with the standard gauge group. The CP violating parameters are constrained by the experimental upper bound on the neutron electric dipole moment. Among the models considered here, it was found that those with leptoquark scalars dominate the contributions to μ-polarization in η → μ+μ−. μ-polarization can be of order 10−3.

CP violation induced by penguin diagrams and the neutron electric dipole moment

1982 ◽  
Vol 109 (3) ◽  
pp. 215-220 ◽  
Author(s):  
M.B. Gavela ◽  
A. Le Yaouanc ◽  
L. Oliver ◽  
O. Pène ◽  
J.-C. RaynaL ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Cp Violation ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Neutron Electric Dipole Moment

scholarly journals CONSTRAINING SUSY MODELS WITH SPONTANEOUS CP VIOLATION VIA B→ψKs

2000 ◽  
Vol 15 (19) ◽  
pp. 2987-2999
Author(s):  
OLEG LEBEDEV
Keyword(s):  
Dipole Moment ◽  
Cp Violation ◽  
Electric Dipole Moment ◽  
Electric Dipole ◽  
Arbitrary Number ◽  
Neutron Electric Dipole Moment ◽  
Cp Asymmetry ◽  
The Standard Model ◽  
Supersymmetric Models ◽  
Susy Models

We study CP-violating effects in B→ψKs decay within minimal supersymmetric models with spontaneous CP violation. We find that the CP asymmetry predicted by the Standard Model in this decay, sin 2β≥0.4, cannot be accommodated in these models without violating the bound on the neutron electric dipole moment. This result holds for NMSSM-like models with an arbitrary number of sterile superfields. Further implications of the scenario are discussed.

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