65 research outputs found
R-parity violating two-loop level rainbowlike contribution to the fermion electric dipole moment
We analyze the two-loop level R-parity violating supersymmetric contribution
to the electric and chromoelectric dipole moments of the fermion with neutrino
and gaugino in the intermediate state. It is found that this contribution can
be sufficiently enhanced with large tan {\beta} and that it can have comparable
size with the currently known R-parity violating Barr-Zee type process in the
TeV scale supersymmetry breaking. We also give new limits on the R-parity
violating couplings from the experimental data of the electric dipole moments
of the neutron and the electron.Comment: 10 pages, 9 figure
Linear programming analysis of the -parity violation within EDM-constraints
The constraint on the -parity violating supersymmetric interactions is
discussed in the light of current experimental data of the electric dipole
moment of neutron, Xe , Tl, and Hg atoms, and YbF and
ThO molecules. To investigate the constraints without relying upon the
assumption of the dominance of a particular combination of couplings over all
the rest, an extensive use is made of the linear programming method in the scan
of the parameter space. We give maximally possible values for the EDMs of the
proton, deuteron, He nucleus, Rn, Ra, Fr, and the
-correlation of the neutron beta decay within the constraints from the
current experimental data of the EDMs of neutron, Xe, Tl, and
Hg atoms, and YbF and ThO molecules using the linear programming
method. It is found that the -correlation of the neutron beta decay and
hadronic EDMs are very useful observables to constrain definite regions of the
parameter space of the -parity violating supersymmetry.Comment: 24 pages, 6 figure
Constraint on R-parity violating MSSM at the one-loop level from CP-odd N-N interaction
Minimal supersymmetric standard model with R-parity violation (RPVMSSM)
contributes to the P-, CP-odd four-quark interaction. The P-, CP-odd four-quark
interaction is constrained by the new 199Hg EDM experimental data. It is then
possible to constrain R-parity violating (RPV) couplings from the 199Hg EDM
data. In this talk, we analyze the RPV contribution to the P-, CP-odd four-
quark interaction at the one-loop level to give constraints on RPV parameters.Comment: To appear in the proceedings of International conference on the
structure of baryons: BARYONS'10, Osaka, Japan, 7-11 Dec 201
R-parity violating supersymmetric contributions to the neutron beta decay at the one-loop level
The contribution of the R-parity violating minimal supersymmetric standard
model to the neutron beta decay at the one-loop level is investigated. It is
found that the baryon number and R-parity violating interactions contribute to
the D correlation through one-loop corrections, while the tree level prediction
is vanishing. The Fierz interference term is also investigated at the one-loop
level by considering the lepton number and R-parity violating interactions. We
show that future experimental progress can provide us with better constraints
on some of the combinations of R-parity violating couplings.Comment: 13 pages, 6 figures, minor correction
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