A taste of EWBG: Linking flavour physics and electroweak baryogenesis

by Cristian Felipe Sierra Fonseca

Wednesday May 27, 2026, 11:00 AM → 12:00 PM Europe/Madrid

C7b/058 - Seminar (IFAE Main Building C7b)

The origin of the observed baryon asymmetry of the Universe (BAU) is one of the deepest puzzles in particle physics and cosmology. We demonstrate for the first time that new physics explaining the long standing charged $B$ meson anomalies, $R(D^{(*)})$,  can be the source of CP violation that explains the observed BAU. We consider the general two Higgs doublet model with complex Yukawa couplings and compute the BAU in the semiclassical formalism. After imposing constraints from both flavour observables and the electron electric dipole moment (eEDM), we find that a significant BAU can still be generated for a variety of benchmark points in the parameter space, assuming the occurrence of a sufficiently strong first order electroweak phase transition. These scenarios, which explain both $R(D^{(*)})$ and the BAU, can be probed  with future eEDM experiments and Higgs factories measurements.

 

Snacks and refreshments will be served after the seminar!!