Deep correlation between cosmic-ray anomaly and neutrino masses

Journal Article · Wed Sep 01 00:00:00 EDT 2010 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.82.053009· OSTI ID:21432951

Matsumoto, Shigeki ^[1]; Yoshioka, Koichi ^[2]

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1. Department of Physics, University of Toyama, Toyama 930-8555 (Japan)
2. Department of Physics, Kyoto University, Kyoto 606-8502 (Japan)

The positron anomaly recently reported by the cosmic-ray measurements suggests that, if explained by the decay of dark matter particle, the decay source is closely linked with the leptonic sector of the standard model. It is observed that, with a simple dimensional analysis, the lifetime of dark matter for the anomaly is expressed by the energy scale of neutrino masses. We present two scenarios in which these two matters at issue (the dark matter width and the tiny neutrino masses) stem from a single operator involving a gauge-singlet scalar field.

• OSTI ID: 21432951
• Journal Information: Physical Review. D, Particles Fields, Vol. 82, Issue 5; Other Information: DOI: 10.1103/PhysRevD.82.053009; (c) 2010 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CORRELATIONS
COSMIC POSITRONS
COSMIC RADIATION
LIFETIME
MASS
NEUTRINOS
NONLUMINOUS MATTER
PARTICLE DECAY
PARTICLES
SCALAR FIELDS
STANDARD MODEL
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
DECAY
ELEMENTARY PARTICLES
FERMIONS
FIELD THEORIES
GRAND UNIFIED THEORY
IONIZING RADIATIONS
LEPTONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MATTER
PARTICLE MODELS
POSITRONS
QUANTUM FIELD THEORY
RADIATIONS
SECONDARY COSMIC RADIATION
UNIFIED GAUGE MODELS