Resonant {tau} Leptogenesis with Observable Lepton Number Violation

Journal Article · Fri Aug 19 04:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.081602· OSTI ID:20699317

Pilaftsis, Apostolos ^[1]

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1. School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom)

We consider a minimal extension of the standard model with one singlet neutrino per generation that can realize resonant leptogenesis at the electroweak scale. In particular, the baryon asymmetry in the Universe can be created by lepton-to-baryon conversion of an individual lepton number, for example, that of the {tau} lepton. The current neutrino data can be explained by a simple CP-violating Yukawa texture. The model has several testable phenomenological implications. It contains heavy Majorana neutrinos at the electroweak scale, which can be probed at e{sup +}e{sup -} linear colliders, and predicts e- and {mu}-lepton-number-violating processes, such as 0{nu}{beta}{beta} decay, {mu}{yields}e{gamma}, and {mu}-e conversion in nuclei, with rates that are within reach of experimental sensitivity.

• OSTI ID: 20699317
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 8 Vol. 95; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ASYMMETRY
BARYONS
COSMOLOGY
CP INVARIANCE
ELECTRON-POSITRON INTERACTIONS
INCLUSIVE INTERACTIONS
LEPTON NUMBER
LINEAR COLLIDERS
MUONS
NEUTRINOS
STANDARD MODEL
TAU PARTICLES
UNIVERSE
YUKAWA POTENTIAL