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arXiv · hep-ph/9709289

Generation of Large Lepton Asymmetries

J. A. Casas·Wai Yan Cheng·G. B. Gelmini
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Abstract

We present here a realistic model to produce a very large lepton asymmetry L of 0.1 to 1, without producing a large baryon asymmetry. The model is based on the Affleck and Dine scenario, in which the field acquiring a large vacuum expectation value during inflation is a s-neutrino right. We require $L$ to be large enough for the electroweak symmetry to be spontaneously broken at all temperatures after inflation, with the consequent suppression of sphaleron transitions.

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J. A. Casas, Wai Yan Cheng, G. B. Gelmini. 1998-05-01. Generation of Large Lepton Asymmetries. https://doi.org/10.1016/s0550-3213(98)00606-3

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