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High Energy Physics - Phenomenology

arXiv:hep-ph/0510081 (hep-ph)
[Submitted on 7 Oct 2005 (v1), last revised 30 Nov 2005 (this version, v3)]

Title:Models of Baryogenesis via Spontaneous Lorentz Violation

Authors:Sean M. Carroll, Jing Shu
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Abstract: In the presence of background fields that spontaneously violate Lorentz invariance, a matter-antimatter asymmetry can be generated even in thermal equilibrium. In this paper we systematically investigate models of this type, showing that either high-energy or electroweak versions of baryogenesis are possible, depending on the dynamics of the Lorentz-violating fields. In addition to the previously-studied models of spontaneous baryogenesis and quintessential baryogenesis, we identify two scenarios of interest: baryogenesis from a pseudo-Nambu-Goldstone boson with weak-scale mass and intermediate-scale baryon-number violation, and sphaleron-induced baryogenesis driven by a constant-magnitude vector with a late-time phase transition.
Comments: 26 pages, 1 figure. references added. submited to PRD
Subjects: High Energy Physics - Phenomenology (hep-ph); Astrophysics (astro-ph)
Report number: EFI-2005-17
Cite as: arXiv:hep-ph/0510081
  (or arXiv:hep-ph/0510081v3 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0510081
Journal reference: Phys.Rev.D73:103515,2006
Related DOI: https://doi.org/10.1103/PhysRevD.73.103515

Submission history

From: Jing Shu [view email]
[v1] Fri, 7 Oct 2005 18:51:14 UTC (25 KB)
[v2] Mon, 14 Nov 2005 20:39:56 UTC (26 KB)
[v3] Wed, 30 Nov 2005 01:37:35 UTC (26 KB)
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