Radiative neutrino decay in a medium

Journal Article · Mon Mar 05 04:00:00 EST 1990 · Physical Review Letters; (USA)

DOI:https://doi.org/10.1103/PhysRevLett.64.1088· OSTI ID:6916167

D'Olivo, J C ^[1]; Nieves, J F ^[2]; Pal, P B ^[3]

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1. Instituto de Ciencias Nucleares Universidad Nacional Autonoma de Mexico Circuito Exterior, Ciudad Universitaria, 04510 Mexico, Distrito Federal, Mexico (MX)
2. Department of Physics, University of Puerto Rico, Rio Piedras, Puerto Rico 00931 (PR)
3. Institute of Theoretical Science, University of Oregon, Eugene, Oregon 97403 (USA)

We calculate the rate of decay of a heavy neutrino into a lighter neutrino and a photon in a background that contain electrons but no {mu}'s or {tau}'s. Unlike the same decay in the vacuum, the rate of this process is not suppressed by the Glashow-Iliopoulos-Maiani mechanism. Some physical implications of the process are discussed.

• OSTI ID: 6916167
• Journal Information: Physical Review Letters; (USA), Journal Name: Physical Review Letters; (USA) Vol. 64:10; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMIC RADIATION
CPT THEOREM
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
FORM FACTORS
GAUGE INVARIANCE
INVARIANCE PRINCIPLES
IONIZING RADIATIONS
LEPTONS
MASSLESS PARTICLES
MATRIX ELEMENTS
NEUTRINOS
PARTICLE PROPERTIES
RADIATIONS
RADIATIVE DECAY