17-KEV NEUTRINO IN A SINGLET TRIPLET MAJORON MODEL

We investigate the possibility of a cosmologically safe 17 keV neutrino which may have been observed in the decays of tritium, S-35, and C-14 within a singlet-triplet majoron model. Consideration of the leptonic decay of K+ and X rays associated with the radiative decay of massive relic neutrinos severely constrains the scale of the spontaneous lepton number violation. It is argued that the mass density of relic 17 keV neutrinos is constrained as OMEGA-v less-than-or-equal-to 0.05h-1 (0.01/sin2-theta) in view of the observed diffuse X ray background.
Publisher
ELSEVIER SCIENCE BV
Issue Date
1991-09
Language
ENG
Keywords

BROKEN LEPTON NUMBER; DECAYS; CONSTRAINTS; SPECTRUM; EMISSION; BOSONS

Citation

PHYSICS LETTERS B, v.267, no.4, pp.504 - 508

ISSN
0370-2693
DOI
10.1016/0370-2693(91)90900-B
URI
http://hdl.handle.net/10203/65580
Appears in Collection
PH-Journal Papers(저널논문)
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