PIRSA:20120014

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

APA

Fitzpatrick, P. (2020). New Pathways to the Relic Abundance of Vector-Portal Dark Matter. Perimeter Institute. https://pirsa.org/20120014

MLA

Fitzpatrick, Patrick. New Pathways to the Relic Abundance of Vector-Portal Dark Matter. Perimeter Institute, Dec. 08, 2020, https://pirsa.org/20120014

BibTex

          @misc{ pirsa_20120014,
            doi = {10.48660/20120014},
            url = {https://pirsa.org/20120014},
            author = {Fitzpatrick, Patrick},
            keywords = {Particle Physics},
            language = {en},
            title = {New Pathways to the Relic Abundance of Vector-Portal Dark Matter},
            publisher = {Perimeter Institute},
            year = {2020},
            month = {dec},
            note = {PIRSA:20120014 see, \url{https://pirsa.org}}
          }
          

Patrick Fitzpatrick Massachusetts Institute of Technology (MIT) - MIT Department of Nuclear Science and Engineering

Collection
Talk Type Scientific Series

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.