Cogenerating and preannihilating 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 StandardModelsinglet fermions that could be dark matter candidates, and can contain new nonabelian 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 nonabelian interactions can “preannihilate' 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:
 Department of Physics and Astronomy Bartol Research Institute, University of Delaware, Newark, Delaware 19716 (United States)
 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: PUBLISHERID: JCAP05(2016)065; OAI: oai:repo.scoap3.org:15822; ccby 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; MANYDIMENSIONAL 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 preannihilating dark matter by a new gauge interaction in a unified model. United States: N. p., 2016.
Web. doi:10.1088/14757516/2016/05/065.
Barr, S.M., & Scherrer, Robert J. Cogenerating and preannihilating dark matter by a new gauge interaction in a unified model. United States. doi:10.1088/14757516/2016/05/065.
Barr, S.M., and Scherrer, Robert J. 2016.
"Cogenerating and preannihilating dark matter by a new gauge interaction in a unified model". United States.
doi:10.1088/14757516/2016/05/065.
@article{osti_22572087,
title = {Cogenerating and preannihilating 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 StandardModelsinglet fermions that could be dark matter candidates, and can contain new nonabelian 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 nonabelian interactions can “preannihilate' 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 = {10.1088/14757516/2016/05/065},
journal = {Journal of Cosmology and Astroparticle Physics},
number = 05,
volume = 2016,
place = {United States},
year = 2016,
month = 5
}

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