Bilinear R-parity violation and small neutrino masses: A self-consistent framework
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Bilinear R-parity violation and small neutrino masses: A self-consistent framework

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Bilinear R-parity violation and small neutrino masses: A self-consistent framework

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dc.contributor.author Mira, Jesús M.
dc.contributor.author Nardi, Enrico
dc.contributor.author Restrepo, Diego
dc.contributor.author Furtado Valle, José Wagner
dc.date.accessioned 2015-10-22T11:51:39Z
dc.date.available 2015-10-22T11:51:39Z
dc.date.issued 2000
dc.identifier.uri http://hdl.handle.net/10550/47869
dc.description.abstract We study extensions of supersymmetric models without R-parity which include an anomalous U(1)_H horizontal symmetry. Bilinear R-parity violating terms induce a neutrino mass at tree level of approximately (θ2)δ eV where θ≈0.22 is the U(1)_H breaking parameter and δ is an integer number that depends on the horizontal charges of the leptons. For δ=1 a unique self-consistent model arises in which i) all the superpotential trilinear R-parity violating couplings are forbidden by holomorphy; ii) the tree level neutrino mass falls in the range suggested by the atmospheric neutrino problem; iii) radiative contributions to neutrino masses are strongly suppressed resulting in a squared solar mass difference of few 10^{-8} eV^2 which only allows for the LOW (or quasi-vacuum) solution to the solar neutrino problem; iv) the neutrino mixing angles are not suppressed by powers of θ and can naturally be large.
dc.language.iso eng
dc.relation.ispartof Physics Letters B, 2000, vol. 492, num. 1-2, p. 81-90
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Mira, Jesús M. Nardi, Enrico Restrepo, Diego Furtado Valle, José Wagner 2000 Bilinear R-parity violation and small neutrino masses: A self-consistent framework Physics Letters B 492 1-2 81 90
dc.subject Física
dc.title Bilinear R-parity violation and small neutrino masses: A self-consistent framework
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-10-22T11:51:39Z
dc.identifier.doi http://dx.doi.org/10.1016/S0370-2693(00)01067-4
dc.identifier.idgrec 072173

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