ICCUB Seminar

New Pathways to the Relic Abundance of Vector-Portal Dark Matter

By Patrick John Fitzpatrick (Center for Theoretical Physics and Massachusetts Institute of Technology)   

Thursday 26 Nov , 14:00:00

E-mail: jsalvado@icc.ub.edu
Web: meet.google.com/nxb-hhyg-jgn

 
Abstract
In the conventional weakly-interacting massive particle (WIMP) paradigm the late-time density of dark matter (DM) is set by the rate of two-body annihilations, but there has been considerable recent interest in exploring alternative DM scenarios where other interactions control the final abundance. I will show that by fully exploring the parameter space of a simple, weakly-coupled dark sector, we can find a rich set of novel pathways which lead to the observed relic density of DM. In particular, we can identify and characterize a general class of mechanisms in which the DM relic abundance is determined by processes controlling the thermal coupling of the DM and Standard Model (dubbed the KINetically DEcoupling Relic -- KINDER), generalizing previously-studied special cases of this behavior.