Lepton number violation in top quark and neutral $B$ meson decays

David Delepine, G. López Castro, and N. Quintero

Phys. Rev. D 84, 096011 – Published 17 November 2011; Erratum Phys. Rev. D 86, 079905 (2012)

Abstract

Lepton number violation can be induced by Majorana neutrinos in four-body decays of the neutral $B$ meson and the top quark. We study the effects of Majorana neutrinos in these $| Δ L | = 2$ decays in a scenario where a single heavy neutrino can enhance the amplitude via the resonant mechanism. Using current bounds on heavy neutrino mixings, the most optimistic branching ratios turn out to be at the level of $10^{- 6}$ for ${\bar{B}}^{0} \to D^{+} e^{-} e^{-} π^{+}$ and $t \to b l^{+} l^{+} W^{-}$ decays. Searches for these lepton number violation decays at future facilities can provide complementary constraints on masses and mixings of Majorana neutrinos.

Received 31 August 2011

DOI:https://doi.org/10.1103/PhysRevD.84.096011

Erratum

Erratum: Lepton number violation in top quark and neutral $B$ meson decays [Phys. Rev. D 84, 096011 (2011)]

David Delepine, G. Lopez Castro, and N. Quintero

Phys. Rev. D 86, 079905 (2012)

Authors & Affiliations

David Delepine^1,*, G. López Castro^2,†, and N. Quintero^2,‡

¹Division de Ciencias e Ingenierías, Universidad de Guanajuato, Campus Leon, C.P. 37150, León, Guanajuato, México
²Departamento de Física, Centro de Investigación y de Estudios Avanzados, Apartado Postal 14-740, 07000 México D.F., México

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Issue

Vol. 84, Iss. 9 — 1 November 2011

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Physical Review D

covering particles, fields, gravitation, and cosmology