Dynamical CP violation at finite temperature

Spontaneous CP Violation in the Minimal Supersymmetric Standard Model at Finite Temperature

We show that in the Minimal Supersymmetric Standard Model one–loop effects at finite temperature may lead to a spontaneous breaking of CP in-variance in the scalar sector. Requiring that the breaking takes place at the critical temperature for the electroweak phase transition, we find that 1

CP Violation at CDF

Dynamical CP violation in composite Higgs models.

The dynamical origin of the CP violation in electroweak theory is investigated in composite Higgs models. The mechanism of the spontaneous CP violation proposed in other context by Dashen is adopted to construct simple models of the dynamical CP violation. Within the models the size of the neutron electric dipole moment is estimated and the constraint on the ε-parameter in K-meson decays is dis...

Dynamical CP Violation and Flavour - Changing Processes

We investigate the phenomenological constraints on a model where, besides the standard model Higgs sector, there is an effective new strong interaction acting on the third generation of quarks and characterized by a θ-like term. This θ term induces electroweak symmetry breaking and leads to dynamical spontaneous CP violation. We show that the constraints coming from K physics and the electric d...

Dynamical CP Violation in the Early Universe

Following earlier ideas of Dolgov, we show that the asymmetrical dynamical evolution of fields in the early Universe provides a new source for CP violation. This can lead to baryogenesis without any additional CP-violating interactions. The magnitude of this CP violation is time-dependent. In particular, it vanishes (or is very small) in the late Universe after the fields have relaxed (or are i...