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Title: Thermal leptogenesis in extended supersymmetric seesaw model

Abstract

We consider an extended supersymmetric SO(10) seesaw model with only doublet Higgs scalars, in which neutrino masses are suppressed by the scale of D-parity violation. Leptogenesis can occur at the TeV scale through the decay of a singlet {sigma}, thereby avoiding the gravitino crisis. Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of {sigma} to leptons.

Authors:
; ; ; ;  [1];  [2];  [3];  [4]
  1. Instituto de Fisica Corpuscular--C.S.I.C./Universitat de Valencia Campus de Paterna, Apt 22085, E-46071 Valencia (Spain)
  2. (United Kingdom)
  3. (Portugal)
  4. (India)
Publication Date:
OSTI Identifier:
20933193
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 75; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevD.75.011701; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ASYMMETRY; HIGGS MODEL; MASS; NEUTRINOS; PARITY; PARTICLE DECAY; PARTICLE PRODUCTION; SO-10 GROUPS; SUPERSYMMETRY; TEV RANGE

Citation Formats

Hirsch, M., Valle, J. W. F., Malinsky, M., Romao, J. C., Sarkar, U., School of Physics and Astronomy, University of Southampton, SO16 1BJ Southampton, Departamento de Fisica and CFTP, Instituto Superior Tecnico Av. Rovisco Pais 1, 1049-001 Lisbon, and Physical Research Laboratory, Ahmedabad 380 009. Thermal leptogenesis in extended supersymmetric seesaw model. United States: N. p., 2007. Web. doi:10.1103/PHYSREVD.75.011701.
Hirsch, M., Valle, J. W. F., Malinsky, M., Romao, J. C., Sarkar, U., School of Physics and Astronomy, University of Southampton, SO16 1BJ Southampton, Departamento de Fisica and CFTP, Instituto Superior Tecnico Av. Rovisco Pais 1, 1049-001 Lisbon, & Physical Research Laboratory, Ahmedabad 380 009. Thermal leptogenesis in extended supersymmetric seesaw model. United States. doi:10.1103/PHYSREVD.75.011701.
Hirsch, M., Valle, J. W. F., Malinsky, M., Romao, J. C., Sarkar, U., School of Physics and Astronomy, University of Southampton, SO16 1BJ Southampton, Departamento de Fisica and CFTP, Instituto Superior Tecnico Av. Rovisco Pais 1, 1049-001 Lisbon, and Physical Research Laboratory, Ahmedabad 380 009. Mon . "Thermal leptogenesis in extended supersymmetric seesaw model". United States. doi:10.1103/PHYSREVD.75.011701.
@article{osti_20933193,
title = {Thermal leptogenesis in extended supersymmetric seesaw model},
author = {Hirsch, M. and Valle, J. W. F. and Malinsky, M. and Romao, J. C. and Sarkar, U. and School of Physics and Astronomy, University of Southampton, SO16 1BJ Southampton and Departamento de Fisica and CFTP, Instituto Superior Tecnico Av. Rovisco Pais 1, 1049-001 Lisbon and Physical Research Laboratory, Ahmedabad 380 009},
abstractNote = {We consider an extended supersymmetric SO(10) seesaw model with only doublet Higgs scalars, in which neutrino masses are suppressed by the scale of D-parity violation. Leptogenesis can occur at the TeV scale through the decay of a singlet {sigma}, thereby avoiding the gravitino crisis. Washout of the asymmetry can be effectively suppressed by the absence of direct couplings of {sigma} to leptons.},
doi = {10.1103/PHYSREVD.75.011701},
journal = {Physical Review. D, Particles Fields},
number = 1,
volume = 75,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}