Speaker
Description
We introduce a new mechanism where we claim that the Charge-Parity (CP) violation from mechanisms within the Standard Model (SM) is enough to generate the observed baryon asymmetry of the universe—an achievement that no other currently proposed mechanism can match. We use a Mesogenesis framework where the CP violation comes entirely from Standard Model contributions to neutral meson systems. In addition to this, we include a dark sector, where the underlying dynamics reveal a morphon field that, serving as a mediator, generates present-day mass contributions for the particle mediating the decay responsible for baryogenesis. The effect is an enhancement of baryon production while evading present-day collider constraints. To complete the model, we look for gravitational wave signatures, comparing the extracted signal with current and upcoming Pulsar Timing Arrays, as we demonstrate with an example. This mechanism, Mesogenesis with a Morphing Mediator, motivates probing a new parameter space and improving the sensitivity of existing Mesogenesis searches at hadron and electron colliders.
