LEPTOGENESIS FROM SOFT SUPERSYMMETRY BREAKING: SOFT LEPTOGENESIS-Reference-Cited by-同舟云学术

LEPTOGENESIS FROM SOFT SUPERSYMMETRY BREAKING: SOFT LEPTOGENESIS

Published:2011-08-20 Issue:21 Volume:26 Page:3491-3604
ISSN:0217-751X
Container-title:International Journal of Modern Physics A
language:en
Short-container-title:Int. J. Mod. Phys. A

Author:

FONG CHEE SHENG¹,GONZALEZ-GARCIA M. C.¹²,NARDI ENRICO³⁴⁵

Affiliation:

1. C.N. Yang Institute for Theoretical Physics, State University of New York at Stony Brook, Stony Brook, NY 11794-3840, USA

2. Institució Catalana de Recerca i Estudis Avançats (ICREA), Departament d'Estructura i Constituents de la Matèria and ICC-UB, Universitat de Barcelona, Diagonal 647, E-08028 Barcelona, Spain

3. INFN, Laboratori Nazionali di Frascati, C.P. 13, 100044 Frascati, Italy

4. Departamento de Física Teórica, C-XI, Facultad de Ciencias, Universidad Autónoma de Madrid, C.U. Cantoblanco, 28049 Madrid, Spain

5. Instituto de Física Teórica UAM/CSIC, Nicolas Cabrera 15, C.U. Cantoblanco, 28049 Madrid, Spain

Abstract

Soft leptogenesis is a scenario in which the cosmic baryon asymmetry is produced from a lepton asymmetry generated in the decays of heavy sneutrinos (the partners of the singlet neutrinos of the seesaw) and where the relevant sources of CP violation are the complex phases of soft supersymmetry-breaking terms. We explain the motivations for soft leptogenesis, and review its basic ingredients: the different CP-violating contributions, the crucial role played by thermal corrections, and the enhancement of the efficiency from lepton flavor effects. We also discuss the high temperature regime T > 107 GeV in which the cosmic baryon asymmetry originates from an initial asymmetry of an anomalous R-charge, and soft leptogenesis reembodies in R-genesis.

Publisher

World Scientific Pub Co Pte Lt

Subject

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

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0217751X1105405X

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