Consequences of a 17-keV neutrino

Journal Article · Thu Aug 01 00:00:00 EDT 1991 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.44.823· OSTI ID:5375894

Caldwell, D O ^[1]; Langacker, P ^[2]

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1. Department of Physics, University of California, Santa Barbara, CA (USA)
2. Department of Physics, University of Pennsylvania, Philadelphia, PA (USA)

If the controversial 17-keV neutrino exists, laboratory, astrophysical and cosmological bounds, unless significantly weakened, require that (1) it be a Majorana neutrino and mainly {nu}{sub {tau}}; (2) it not be the dark matter of the universe, although its existence would rule out dominant hot dark matter; (3) the {nu}{sub {mu}} be a heavy Majorana neutrino of mass 17 keV or in the range 170--270 keV; and (4) the Mikheyev-Smirnov-Wolfenstein solution to the solar-neutrino problem involve {nu}{sub {ital e}} conversion to a light sterile (SU(2)-singlet) neutrino.

• DOE Contract Number: AC02-76ER03071; AM03-76SF00010
• OSTI ID: 5375894
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 44:3; ISSN PRVDA; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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71 CLASSICAL AND QUANTUM MECHANICS
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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
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BETA DECAY
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