1996/11/26 by J. P. Bowes, Raymond R. Volkas, R. R. Volkas
Physics and Astronomy · #Asymmetry #Baryogenesis #Baryon #Baryon asymmetry #Baryon number #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Higgs boson #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Scalar (mathematics) #Sphaleron #Standard Model (mathematical formulation) #Theoretical physics #Yukawa potential #hep-ph
paper · pdf · doi:10.1103/physrevd.55.3844
published as Phys.Rev. D55 (1997) 3844-3850 · 14 pages, 3 Postscript figures
arxiv created 1996/11/26 · openalex publication_date 1997/03/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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\ensuremath-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.