Baryogenesis from baryon number violating scalar interactions

Details Baryogenesis from baryon number violating scalar interactions Baryogenesis from baryon number violating scalar interactions

1996-11-26

arxiv.org/abs/hep-ph/9611440v1

Phys.Rev. D55 (1997) 3844-3850

Physics

High Energy Physics

High Energy Physics - Phenomenology

14 pages, 3 Postscript figures

Scientific paper

10.1103/PhysRevD.55.3844

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 $B-L$ 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.

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