Radiative neutrino decays and scattering experiments
Journal Article
·
· Phys. Rev. D; (United States)
Existing measurements of the total nu-bar/sub e/e/sup -/ cross section yield a very restrictive limit on the radiative decay of electron neutrinos, tau/sub ..nu..//sub e/m/sub ..nu../e/sup 3/>3 x 10/sup 18/ /sec eV/sup 3/, which is even competitive with recent bounds from the nonobservation of ..gamma.. rays from SN 1987A. Our bound is not valid if the neutrino electric and magnetic transition moments are exactly equal, a cancellation which can occur only if neutrinos are of Dirac type. This is a new example for the important differences in the electromagnetic properties of Dirac versus Majorana neutrinos.
- Research Organization:
- Institute for Advanced Study, School of Natural Science, Princeton, New Jersey 08540
- OSTI ID:
- 6189182
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 39:7; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
645202* -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Electromagnetic Interactions & Properties
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DIPOLE MOMENTS
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
INTERACTIONS
LAGRANGIAN FUNCTION
LEPTON-LEPTON INTERACTIONS
LEPTONS
LIMITING VALUES
MASSLESS PARTICLES
NEUTRINO-ELECTRON INTERACTIONS
NEUTRINOS
PARTICLE INTERACTIONS
RADIATIVE DECAY
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DIPOLE MOMENTS
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
FERMIONS
FUNCTIONS
INTERACTIONS
LAGRANGIAN FUNCTION
LEPTON-LEPTON INTERACTIONS
LEPTONS
LIMITING VALUES
MASSLESS PARTICLES
NEUTRINO-ELECTRON INTERACTIONS
NEUTRINOS
PARTICLE INTERACTIONS
RADIATIVE DECAY