Neutrino mass induced radiatively by supersymmetric leptoquarks
Journal
Physics Letters
Journal Volume
B479
Pages
224-229
Date Issued
1999-05
Author(s)
Abstract
We show how nonzero Majorana neutrino masses can be radiatively generated by extending the MSSM with leptoquark chiral multiplets without violating R-parity. It is found that, with these particles, the R-parity conservation does not imply lepton number conservation. Neutrino masses generated at a one-loop level are closely related to the down quark mass matrix. The ratio of neutrino mass-squared splittings Δm(ν2)/2-(ν)1/ Δm(ν3)2-(ν)2 obtained is naturally close to Δm(s)-(d)2/ Δm(b-(s)/2 ~ 10-3 which is in the right region required to explain both the atmospheric neutrino data and the MSW solutions for the solar neutrino data. (C) 2000 Elsevier Science B.V.
SDGs
Type
journal article