Leptogenesis: Lepton number violation in cosmology and particle physics

M. Yoshimura

doi:10.1016/j.nuclphysbps.2005.05.014

Leptogenesis: Lepton number violation in cosmology and particle physics

M. Yoshimura

Research Institute for Interdisciplinary Science

Research output: Contribution to journal › Article › peer-review

Abstract

Lepton number nonconservation which may have occurred in the early universe is a key to understand how the baryon asymmetric universe is realized in the present epoch. We shall review the fundamental theory towards this goal. The grave problem of gravitino overproduction, a problem common both to leptogenesis and GUT baryogenesis once thermal abundance of agent particles is assumed, is stressed, and two possible ways out of this difficulty are mentioned. How lepton number violation along with CP violation might be detected in terrestrial laboratories is also briefly mentioned.

Original language	English
Pages (from-to)	79-83
Number of pages	5
Journal	Nuclear Physics B - Proceedings Supplements
Volume	149
DOIs	https://doi.org/10.1016/j.nuclphysbps.2005.05.014
Publication status	Published - Dec 1 2005

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Nuclear and High Energy Physics

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10.1016/j.nuclphysbps.2005.05.014

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abstract = "Lepton number nonconservation which may have occurred in the early universe is a key to understand how the baryon asymmetric universe is realized in the present epoch. We shall review the fundamental theory towards this goal. The grave problem of gravitino overproduction, a problem common both to leptogenesis and GUT baryogenesis once thermal abundance of agent particles is assumed, is stressed, and two possible ways out of this difficulty are mentioned. How lepton number violation along with CP violation might be detected in terrestrial laboratories is also briefly mentioned.",

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AB - Lepton number nonconservation which may have occurred in the early universe is a key to understand how the baryon asymmetric universe is realized in the present epoch. We shall review the fundamental theory towards this goal. The grave problem of gravitino overproduction, a problem common both to leptogenesis and GUT baryogenesis once thermal abundance of agent particles is assumed, is stressed, and two possible ways out of this difficulty are mentioned. How lepton number violation along with CP violation might be detected in terrestrial laboratories is also briefly mentioned.

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Leptogenesis: Lepton number violation in cosmology and particle physics

Abstract

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