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Color breaking baryogenesis

Ramsey-Musolf, Michael J. and White, Graham and Winslow, Peter (2018) Color breaking baryogenesis. Physical Review D, 97 (12). Art. No. 123509. ISSN 2470-0010. doi:10.1103/PhysRevD.97.123509.

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We propose a scenario that generates the observed baryon asymmetry of the Universe through a multistep phase transition in which SU(3) color symmetry is first broken and then restored. A spontaneous violation of B−L conservation leads to a contribution to the baryon asymmetry that becomes negligible in the final phase. The baryon asymmetry is therefore produced exclusively through the electroweak mechanism in the intermediate phase. We illustrate this scenario with a simple model that reproduces the observed baryon asymmetry. We discuss how future electric dipole moment and collider searches may probe this scenario, though future electric dipole moment searches would require an improved sensitivity of several orders of magnitude.

Item Type:Article
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URLURL TypeDescription Paper
Ramsey-Musolf, Michael J.0000-0001-8110-2479
Additional Information:© 2018 Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3. Received 11 September 2017; published 8 June 2018. We thank Lorenzo Sorbo for helpful discussions. G.W. would like to acknowledge that his contribution to this work was partly funded by both the American Australian Association via the Keith Murdoch fellowship as well the Australian Postgraduate Award (APA). M. J. R. M. and P.W. were supported in part under U.S. Department of Energy Contract No. DE-SC0011095.
Funding AgencyGrant Number
American Australian AssociationUNSPECIFIED
Australian Postgraduate AwardUNSPECIFIED
Department of Energy (DOE)DE-SC0011095
Issue or Number:12
Record Number:CaltechAUTHORS:20180608-145742067
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:86942
Deposited By: Tony Diaz
Deposited On:08 Jun 2018 22:11
Last Modified:15 Nov 2021 20:43

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