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Leptogenesis in the Universe

Fong, Chee Sheng
Nardi, Enrico
Published in Advances in High Energy Physics. 2012, vol. 2012, p. 1-59
Abstract Leptogenesis is a class of scenarios in which the cosmic baryon asymmetry originates from an initial lepton asymmetry generated in the decays of heavy sterile neutrinos in the early Universe. We explain why leptogenesis is an appealing mechanism for baryogenesis. We review its motivations and the basic ingredients and describe subclasses of effects, like those of lepton flavours, spectator processes, scatterings, finite temperature corrections, the role of the heavier sterile neutrinos, and quantum corrections. We then address leptogenesis in supersymmetric scenarios, as well as some other popular variations of the basic leptogenesis framework.
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FONG, Chee Sheng, NARDI, Enrico, RIOTTO, Antonio Walter. Leptogenesis in the Universe. In: Advances in High Energy Physics, 2012, vol. 2012, p. 1-59. https://archive-ouverte.unige.ch/unige:36512

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Deposited on : 2014-05-12

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