Neutrino mass, the abundance of right-handed neutrinos and the closure of the universe

Journal Article · Wed Jul 01 04:00:00 EDT 1981 · Chin. Phys.; (United States)

OSTI ID:6160048

Qing, C R; Wu, Y S; He, Z X; Zhang, Z X; Zou, Z L

It is pointed out that although the neutrino mass is finite, the left-handed neutrino density still dominates over the right-handed one in the universe unless there exists one (or more) elementary fermion (quark or lepton) whose mass is larger than 10/sup 6/ GeV or M/sub W//sub R//M/sub W//sub L/< or approx. =10/sup 2/(W/sub L/ and W/sub R/ are the left and right-handed intermediate bosons, respectively). If a neutrino has mass of approx.34 eV as indicated in some experiments, then one can conclude that the total neutrino mass should contribute about 99% to the mass of the whole universe and lead to the closure of the universe. This conclusion can be brought in to agreement with all observational data which have been obtained up to now. A mass limit of all species of neutrinos obtained by reexamining all data is summation/sub i//sup /mi-italic< or approx. =200 eV.

• Research Organization: Institute of Theoretical Physics, Academia Sinica, Beijing
• OSTI ID: 6160048
• Journal Information: Chin. Phys.; (United States), Journal Name: Chin. Phys.; (United States) Vol. 1:3; ISSN CHPHD
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics &amp; Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC NEUTRINOS
COSMIC RADIATION
COSMOLOGY
ELEMENTARY PARTICLES
FERMIONS
IONIZING RADIATIONS
LEPTONS
LIE GROUPS
LIMITING VALUES
MASS
MASSLESS PARTICLES
NEUTRINOS
RADIATIONS
REST MASS
SU GROUPS
SU-2 GROUPS
SYMMETRY GROUPS
U GROUPS
U-1 GROUPS
UNIVERSE