Do neutrino rest masses affect cosmological helium production

Journal Article · Mon Aug 25 00:00:00 EDT 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.45.669· OSTI ID:5052770

Shapiro, S L; Teukolsky, S A; Wasserman, I

It is shown that the possibility of nonzero neutrino rest masses m/sub ..nu../approx. =10 eV/c/sup 2/ does not alter previous predictions of the standard big-bang model for the primordial /sup 4/He abundance. Although both left- and right-handed neutrinos could then be present, reactions mediated by the standard Weinberg-Salam-Glashow model extended to include Dirac neutrinos with nonzero rest mass cannot maintain ..nu../sub R/ in thermal equilibrium.

• Research Organization: Center for Radiophysics and Space Research, Cornell University, Ithaca, New York 14853
• OSTI ID: 5052770
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 45:8
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMOLOGICAL MODELS
HELIUM 4
NEUTRINOS
NUCLEOSYNTHESIS
ABUNDANCE
REST MASS
WEINBERG-SALAM GAUGE MODEL
ELEMENTARY PARTICLES
EVEN-EVEN NUCLEI
FERMIONS
HELIUM ISOTOPES
ISOTOPES
LEPTONS
LIGHT NUCLEI
MASS
MASSLESS PARTICLES
MATHEMATICAL MODELS
NUCLEI
PARTICLE MODELS
STABLE ISOTOPES
UNIFIED GAUGE MODELS
640106* - Astrophysics & Cosmology- Cosmology
645203 - High Energy Physics- Particle Interactions & Properties-Theoretical- Weak Interactions & Properties