Particle Theory Seminar - B-Mesogenesis: Baryogenesis and Dark Matter from B Mesons, Miguel Escudero, TU Munich

In this seminar, based on 1810.00880 and 2101.02706, I will present a new mechanism of Baryogenesis and Dark Matter production: B-Mesogenesis. Within the B-Mesogenesis paradigm, both the dark matter relic abundance and the baryon asymmetry arise from neutral B meson oscillations and subsequent decays in the early Universe.

This mechanism would have distinctive experimental signals that I will discuss in detail:

i) the new decay mode of B mesons into a baryon and missing energy, with a BR > 10^{-4}.

ii) a positive CP asymmetry in neutral B meson decays, > 10^{-5}.

I will discuss the reach of current collider experiments to these signatures, and I will show that a combination of measurements at BaBar, Belle, Belle II, LHCb, ATLAS & CMS can fully test B-Mesogenesis.