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Baryogenesis with Higher Dimension Operators

Cheung, Clifford and Ishiwata, Koji (2013) Baryogenesis with Higher Dimension Operators. Physical Review D, 88 (1). Art. No. 017901. ISSN 1550-7998. http://resolver.caltech.edu/CaltechAUTHORS:20130415-085731062

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Abstract

We propose a simple model of baryogenesis comprised of the standard model coupled to a singlet X via higher dimension operators O. In the early universe, X is thermalized by O mediated scattering processes before it decouples relativistically and evolves into a sizable fraction of the total energy density. Eventually, X decays via O in an out of equilibrium, baryon number and CP violating process that releases entropy and achieves baryogenesis for a broad range of parameters. The decay can also produce a primordial abundance of dark matter. Because X may be as light as a TeV, viable regions of parameter space lie within reach of experimental probes of n-n oscillation, flavor physics, and proton decay.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://arxiv.org/abs/1304.0468arXivDiscussion Paper
http://dx.doi.org/10.1103/PhysRevD.88.017901 DOIArticle
http://link.aps.org/doi/10.1103/PhysRevD.88.017901PublisherArticle
Additional Information:© 2013 American Physical Society. Received 5 April 2013; published 9 July 2013. This publication is funded by the Gordon and Betty Moore Foundation through GBMF Grant No. 776 to the Caltech Moore Center for Theoretical Cosmology and Physics. The work is also supported by the U.S. Department of Energy under Contract No. DE-FG02-92ER40701.
Group:Caltech Theory, Moore Center for Theoretical Cosmology and Physics
Funders:
Funding AgencyGrant Number
Gordon and Betty Moore FoundationGBMF 776
Caltech Moore Center for Theoretical Cosmology and PhysicsUNSPECIFIED
Department of Energy (DOE)DE-FG02-92ER40701
Classification Code:PACS: 11.30.Fs, 95.35.+d, 98.80.Cq
Record Number:CaltechAUTHORS:20130415-085731062
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130415-085731062
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:37928
Collection:CaltechAUTHORS
Deposited By: Ruth Sustaita
Deposited On:15 Apr 2013 16:10
Last Modified:23 Mar 2017 22:16

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