Unification of gauge couplings and the tau-neutrino mass in supergravity without R parity
NAGIOS: RODERIC FUNCIONANDO

Unification of gauge couplings and the tau-neutrino mass in supergravity without R parity

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Unification of gauge couplings and the tau-neutrino mass in supergravity without R parity

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dc.contributor.author Díaz, Marco Aurelio
dc.contributor.author Ferrandis Alapont, Francisco Javier
dc.contributor.author Romao, J. C.
dc.contributor.author Furtado Valle, José Wagner
dc.date.accessioned 2015-10-22T11:23:54Z
dc.date.available 2015-10-22T11:23:54Z
dc.date.issued 2000
dc.identifier.uri http://hdl.handle.net/10550/47866
dc.description.abstract Minimal R-parity violating supergravity predicts a value for alphas(MZ) smaller than in the case with conserved R-parity, and therefore closer to the experimental world average. We show that the R-parity violating effect on the alphas prediction comes from the larger two-loop b-quark Yukawa contribution to the renormalization group evolution of the gauge couplings which characterizes R-parity violating supergravity. The effect is correlated to the tau neutrino mass and is sensitive to the initial conditions on the soft supersymmetry breaking parameters at the unification scale. We show how a few percent effect on alphas(MZ) may naturally occur even with tau neutrino masses as small as indicated by the simplest neutrino oscillation interpretation of the atmospheric neutrino data from Super-Kamiokande.
dc.language.iso eng
dc.relation.ispartof Nuclear Physics B, 2000, vol. 590, num. 1-2, p. 3-18
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source Díaz, Marco Aurelio Ferrandis Alapont, Francisco Javier Romao, J. C. Furtado Valle, José Wagner 2000 Unification of gauge couplings and the tau-neutrino mass in supergravity without R parity Nuclear Physics B 590 1-2 3 18
dc.subject Física
dc.title Unification of gauge couplings and the tau-neutrino mass in supergravity without R parity
dc.type info:eu-repo/semantics/article
dc.date.updated 2015-10-22T11:23:54Z
dc.identifier.doi http://dx.doi.org/10.1016/S0550-3213(00)00464-8
dc.identifier.idgrec 072171

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