The Zoom link for the Sydney-CPPC seminars is https://uni-sydney.zoom.us/j/2980559069. The seminars are open to everyone.

Seminar

Saving YB from LNV at low energies with Asymmetric Dark Matter

by Claudia Hagedorn (INFN, Section of Padua)

Australia/Sydney
Description

It is known that lepton number violating (LNV) processes at low energies in combination with sphaleron transitions typically erase any preexisting baryon asymmetry YB. In this talk, I show that the presence of a dark sector with a global symmetry U(1)X, which features Asymmetric Dark Matter (ADM), invalidates this statement. Considering several models with different types of ADM, I find that the mass of the latter is generically of the order of a few GeV or below.