skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Cogenerating and pre-annihilating dark matter by a new gauge interaction in a unified model

Abstract

Grand unified theories based on large groups (with rank ≥6) are a natural context for dark matter models. They contain Standard-Model-singlet fermions that could be dark matter candidates, and can contain new non-abelian interactions whose sphalerons convert baryons, leptons, and dark matter into each other, “cogenerating' a dark matter asymmetry comparable to the baryon asymmetry. In this paper it is shown that the same non-abelian interactions can “pre-annihilate' the symmetric component of heavy dark matter particles χ, which then decay late into light stable dark matter particles ζ that inherit their asymmetry. We derive cosmological constraints on the parameters of such models. The mass of χ must be <3000 TeV and their decays must happen when 2×10{sup −7}

Authors:
 [1];  [2]
  1. Department of Physics and Astronomy Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)
  2. Department of Physics and Astronomy, Vanderbilt University, Nashville, Tennessee 37235 (United States)
Publication Date:
Sponsoring Org.:
SCOAP3, CERN, Geneva (Switzerland)
OSTI Identifier:
22572087
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Cosmology and Astroparticle Physics; Journal Volume: 2016; Journal Issue: 05; Other Information: PUBLISHER-ID: JCAP05(2016)065; OAI: oai:repo.scoap3.org:15822; cc-by Article funded by SCOAP3. Content from this work may be used under the terms of the Creative Commons Attribution 3.0 License. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; BARYONS; COSMOLOGY; FIELD OPERATORS; MANY-DIMENSIONAL CALCULATIONS; NONLUMINOUS MATTER; PARTICLE DECAY; POSTULATED PARTICLES; REST MASS; STANDARD MODEL; SU GROUPS; UNIFIED MODEL

Citation Formats

Barr, S.M., and Scherrer, Robert J.. Cogenerating and pre-annihilating dark matter by a new gauge interaction in a unified model. United States: N. p., 2016. Web. doi:10.1088/1475-7516/2016/05/065.
Barr, S.M., & Scherrer, Robert J.. Cogenerating and pre-annihilating dark matter by a new gauge interaction in a unified model. United States. doi:10.1088/1475-7516/2016/05/065.
Barr, S.M., and Scherrer, Robert J.. Tue . "Cogenerating and pre-annihilating dark matter by a new gauge interaction in a unified model". United States. doi:10.1088/1475-7516/2016/05/065.
@article{osti_22572087,
title = {Cogenerating and pre-annihilating dark matter by a new gauge interaction in a unified model},
author = {Barr, S.M. and Scherrer, Robert J.},
abstractNote = {Grand unified theories based on large groups (with rank ≥6) are a natural context for dark matter models. They contain Standard-Model-singlet fermions that could be dark matter candidates, and can contain new non-abelian interactions whose sphalerons convert baryons, leptons, and dark matter into each other, “cogenerating' a dark matter asymmetry comparable to the baryon asymmetry. In this paper it is shown that the same non-abelian interactions can “pre-annihilate' the symmetric component of heavy dark matter particles χ, which then decay late into light stable dark matter particles ζ that inherit their asymmetry. We derive cosmological constraints on the parameters of such models. The mass of χ must be <3000 TeV and their decays must happen when 2×10{sup −7}},
doi = {10.1088/1475-7516/2016/05/065},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2016,
place = {United States},
year = {Tue May 31 00:00:00 EDT 2016},
month = {Tue May 31 00:00:00 EDT 2016}
}