17-keV neutrino in a left-right model

Journal Article · Fri Jan 01 04:00:00 EST 1993 · Physical Review, D (Particles Fields); (United States)

DOI:https://doi.org/10.1103/PhysRevD.47.256· OSTI ID:6900257

Whisnant, K; Woodside, J; Young, B ^[1]

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1. Physics Department and Ames Laboratory, Iowa State University, Ames, Iowa 50011 (United States)

We examine the possibility of embedding a 17-keV neutrino in a left-right model with three generations of left- and right-handed neutrinos. In particular, we study scenarios where the 17-keV neutrino is a pseudo Dirac neutrino and its mass is generated radiatively. Two heavy right-handed neutrinos have their mass scale set by the SU(2)[sub [ital R]]-breaking scale, and the two light-neutrino masses are then determined by a seesaw mechanism. This scenario requires new Higgs bosons beyond those necessary in a minimal left-right model. The left-right symmetry leads to relations between the charged- and neutral-lepton mass matrices. We examine the constraints on the model from charged-lepton masses, leptonic flavor-changing neutral currents, neutrino data, cosmology, and astrophysics.

• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6900257
• Journal Information: Physical Review, D (Particles Fields); (United States), Journal Name: Physical Review, D (Particles Fields); (United States) Vol. 47:1; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

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