Implications of the triplet-Majoron model for the supernova SN1987A

Journal Article · Tue Mar 15 04:00:00 EST 1988 · Phys. Rev. D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.37.1360· OSTI ID:5333725

Aharonov, Y; Nussinov, S

We address several possible implications of the triplet-Majoron (TM) model for supernova physics, such as cooling and rapid deleptonization. We find that recent observations of the neutrinos from SN1987A are consistent with the TM model even if the ..nu../sub e/..nu../sub e/-Majoron coupling constant is g/sub e//sub e/approx. =0.7 x 10/sup -3/ suggested by a recent ..beta beta..-decay experiment. We find specifically that deleptonization via ..nu../sub e/..nu../sub e/..-->..chi/sup 0/, followed by conversion to chi-bar/sup 0/, is unlikely to be important for this value of g/sub e//sub e/;however, if g/sub e//sub e/approx. =g/sub ..mu..//sub ..mu../approx. =g/sub tau//sub tau/, neutrino species equilibration via ..nu../sub e/..nu../sub e/..--> nu../sub ..mu../..nu../sub ..mu../ and ..nu../sub e/..nu../sub e/..--> nu../sub tau/..nu../sub tau/ is likely to occur on a time scale of )similarreverse arrowto)10/sup -4/ sec. Rapid equilibration, followed by decay in flight via ..nu../sub ..mu../(..nu../sub tau/)..-->..nu-bar/sub e/+chi/sup 0/, can dramatically enhance the chance of observing neutronization neutrinos, even for g/sub ..mu..//sub e//sup 2/ and g/sub tau//sub e//sup 2/approx. =10/sup -18/. This last effect might be detected in nearby supernovas

• Research Organization: School of Physics and Astronomy, Raymond and Beverly Sackler, Faculty of Exact Science, Tel-Aviv University, Ramat Aviv, Tel-Aviv 69978 Israel South Carolina 29208
• OSTI ID: 5333725
• Journal Information: Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 37:6; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
645203 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Weak Interactions & Properties
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BETA DECAY
BOSONS
COUPLING CONSTANTS
CROSS SECTIONS
DECAY
ELECTRON NEUTRINOS
ELEMENTARY PARTICLES
ENERGY SPECTRA
ERUPTIVE VARIABLE STARS
FERMIONS
GOLDSTONE BOSONS
HIGGS BOSONS
LEPTONS
LIE GROUPS
MAJORANA THEORY
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NEUTRINOS
NUCLEAR POTENTIAL
POSTULATED PARTICLES
POTENTIALS
QUANTUM NUMBERS
SPECTRA
STAR MODELS
STARS
SU GROUPS
SU-2 GROUPS
SUPERNOVAE
SYMMETRY GROUPS
VACUUM STATES
VARIABLE STARS
YUKAWA POTENTIAL