Baryogenesis via left-right asymmetry generation by the Affleck-Dine mechanism in a Dirac neutrino model

Journal Article · Tue May 15 00:00:00 EDT 2007 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.75.105004· OSTI ID:20933297

Senami, Masato; Takayama, Tsutomu ^[1]

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1. ICRR, University of Tokyo, Kashiwa 277-8582 (Japan)

A baryogenesis scenario in supersymmetric standard models with Dirac neutrinos proposed by Abel and Page is reconsidered, introducing intermediate scale physics to stabilize the runaway potential along a right-handed sneutrino direction. Contrary to previous results, the baryon number asymmetry can be explained even for higher reheating temperature without entropy production if the lightest neutrino mass is small and/or thermal effects induce early oscillation. We also discuss the solution to the problem of dark matter overproduction from the right-handed sneutrino decay by SU(2){sub R} gauge interaction.

• OSTI ID: 20933297
• Journal Information: Physical Review. D, Particles Fields, Vol. 75, Issue 10; Other Information: DOI: 10.1103/PhysRevD.75.105004; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BARYON NUMBER
ENTROPY
MASS
MATHEMATICAL SOLUTIONS
NEUTRINOS
NONLUMINOUS MATTER
OSCILLATIONS
PARTICLE DECAY
POTENTIALS
SPARTICLES
STANDARD MODEL
SU-2 GROUPS
SUPERSYMMETRY
TEMPERATURE DEPENDENCE