Two-photon decays of heavy neutrinos

Journal Article · Sat Oct 01 04:00:00 EDT 1983 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.28.1664· OSTI ID:5267445

Nieves, J F

The process ..nu../sub 1/..--> nu../sub 2/+..gamma..+..gamma.. is studed in detail. Formulas for the decay rate are given in the context of the SU(2) x U(1) model with massive neutrinos and it is shown that this process can dominate over ..nu../sub 1/..--> nu../sub 2/+..gamma.. for some range of values of m1, depending on the relevant mixing angles. A general, model-independent analysis is also given with particular emphasis on the difference between the cases of Dirac and Majorana neutrinos. In particular, we show how the invariant amplitudes in the Majorana case can be expressed in terms of the amplitudes calculated as if the neutrinos were Dirac particles.

• Research Organization: Department of Physics, University of Puerto Rico, Rio Piedras, Puerto Rico 00931
• OSTI ID: 5267445
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 28:7; ISSN PRVDA
• 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
CP INVARIANCE
DIFFERENTIAL EQUATIONS
DIRAC EQUATION
ELEMENTARY PARTICLES
EQUATIONS
FERMIONS
INVARIANCE PRINCIPLES
LEPTONS
LIE GROUPS
MAJORANA THEORY
MASS
MASSLESS PARTICLES
NEUTRINOS
PARTIAL DIFFERENTIAL EQUATIONS
PHOTONS
RADIATIVE DECAY
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
WAVE EQUATIONS