[W95] Lucía Duarte: Majorana Neutrinos with effective interactions in B decays

Wednesday 20 May 2020 at 15:00 GMT

Speaker

Lucía Duarte
Instituto de Física, Facultad de Ciencias
Universidad de la República
Uruguay.

Host

Joel Jones-Pérez
Pontificia Universidad Católica del Perú (PUCP)

Abstract

We investigate the possible contribution of intermediate Majorana neutrinos to B meson decays in an interaction formalism with dim 6 effective operators. We exploit the existing bounds on the lepton number violating  B -> mu mu pi+ and in the radiative B -> mu nu gamma decays  to constrain the new physics contributions, characterized by their Dirac-Lorentz structure. We propose studying tau lepton polarization and lepton-photon angular asymmetries in tauonic and radiative B decays at B factories as a means to  evaluate and disentangle the trails of the distinct effective operators

Reference

L. D, J. Peressutti, I. Romero, O.A. Sampayo. Eur.Phys.J.C.79, 593 (2019),

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