Baryogenesis from baryon-number-violating scalar interactions

J. P. Bowes and R. R. Volkas
Phys. Rev. D 55, 3844 – Published 15 March 1997
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Abstract

In the following work we consider the possibility of explaining the observed baryon-number asymmetry in the universe from simple baryon-number-violating modifications, involving massive scalar bosons, to the standard model. In these cases baryon-number violation is mediated through a combination of Yukawa and scalar self-coupling interactions. Starting with a previously compiled catalogue of baryon-number-violating extensions of the standard model, we identify the minimal subsets which can induce a BL asymmetry and thus be immune to sphaleron washout. For each of these models, we identify the region of parameter space that leads to the production of a baryon number asymmetry of the correct order of magnitude.

  • Received 30 September 1996

DOI:https://doi.org/10.1103/PhysRevD.55.3844

©1997 American Physical Society

Authors & Affiliations

J. P. Bowes and R. R. Volkas

  • Research Centre for High Energy Physics, School of Physics, University of Melbourne, Parkville, 3052 Australia

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Vol. 55, Iss. 6 — 15 March 1997

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