Speaker
Description
We investigate the potential of the model 'CP in the Dark'
for providing a strong first-order electroweak phase transition (SFOEWPT) by
taking into account all relevant theoretical and experimental constraints. For the
derivation of the strength of the phase transition we use the one-loop corrected,
daisy-resummed effective potential at finite temperature, implemented in the C++
code BSMPT, to determine the global minimum at the critical temperature. The
model 'CP in the Dark' provides a Dark Matter (DM) candidate as well as explicit
CP violation in the dark sector. We find a broad range of viable parameter points
providing an SFOEWPT. They are within the reach of XENON1T and future
invisible Higgs decay searches for DM. 'CP in the Dark' also offers SFOEWPT
points that display spontaneous CP violation at finite temperature. Having not only
an SFOEWPT that provides the necessary departure from thermal equilibrium, but
also a source of additional non-standard CP violation, opens a promising gate
towards enabling the generation of the baryon asymmetry of the universe (BAU)
through electroweak baryogenesis.
