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Title: Color breaking baryogenesis

Abstract

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.

Authors:
 [1];  [2];  [3]
  1. Univ. of Massachusetts, Amherst, MA (United States). Physics Dept.; California Inst. of Technology (CalTech), Pasadena, CA (United States). Kellogg Radiation Lab.
  2. Monash Univ., Melbourne, VIC (Australia). ARC Centre of Excellence for Particle Physics; TRIUMF, Vancouver, BC (Canada)
  3. Univ. of Massachusetts, Amherst, MA (United States). Physics Dept.
Publication Date:
Research Org.:
Univ. of Massachusetts, Amherst, MA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1441088
Alternate Identifier(s):
OSTI ID: 1501540
Grant/Contract Number:  
SC0011095
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 12; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
79 ASTRONOMY AND ASTROPHYSICS; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Ramsey-Musolf, Michael J., White, Graham, and Winslow, Peter. Color breaking baryogenesis. United States: N. p., 2018. Web. doi:10.1103/physrevd.97.123509.
Ramsey-Musolf, Michael J., White, Graham, & Winslow, Peter. Color breaking baryogenesis. United States. doi:10.1103/physrevd.97.123509.
Ramsey-Musolf, Michael J., White, Graham, and Winslow, Peter. Fri . "Color breaking baryogenesis". United States. doi:10.1103/physrevd.97.123509.
@article{osti_1441088,
title = {Color breaking baryogenesis},
author = {Ramsey-Musolf, Michael J. and White, Graham and Winslow, Peter},
abstractNote = {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.},
doi = {10.1103/physrevd.97.123509},
journal = {Physical Review D},
number = 12,
volume = 97,
place = {United States},
year = {2018},
month = {6}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/physrevd.97.123509

Citation Metrics:
Cited by: 9 works
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