Rare meson decays with three pairs of quasidegenerate heavy neutrinos

Gastón Moreno, Jilberto Zamora-Saa

Resultado de la investigación: Article

12 Citas (Scopus)

Resumen

We consider a low-scale seesaw scenario where the masses of its heavy Majorana neutrinos are arranged in a pattern of three quasidegenerate pairs, in the range of O(1-6 GeV). Since they can violate lepton number by two units, they contribute to rare decays of Ds and Bc mesons, providing the conditions for maximal CP violation. We find that new phenomenology is possible depending on how many of on-shell pairs mediate these decays. In particular, we present new constraints on muon-heavy neutrino mixing parameters.

Idioma originalEnglish
Número de artículo093005
PublicaciónPhysical Review D
Volumen94
N.º9
DOI
EstadoPublished - 28 nov 2016

Huella dactilar

neutrinos
mesons
decay
CP violation
phenomenology
leptons
muons

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Citar esto

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Rare meson decays with three pairs of quasidegenerate heavy neutrinos. / Moreno, Gastón; Zamora-Saa, Jilberto.

En: Physical Review D, Vol. 94, N.º 9, 093005, 28.11.2016.

Resultado de la investigación: Article

TY - JOUR

T1 - Rare meson decays with three pairs of quasidegenerate heavy neutrinos

AU - Moreno, Gastón

AU - Zamora-Saa, Jilberto

PY - 2016/11/28

Y1 - 2016/11/28

N2 - We consider a low-scale seesaw scenario where the masses of its heavy Majorana neutrinos are arranged in a pattern of three quasidegenerate pairs, in the range of O(1-6 GeV). Since they can violate lepton number by two units, they contribute to rare decays of Ds and Bc mesons, providing the conditions for maximal CP violation. We find that new phenomenology is possible depending on how many of on-shell pairs mediate these decays. In particular, we present new constraints on muon-heavy neutrino mixing parameters.

AB - We consider a low-scale seesaw scenario where the masses of its heavy Majorana neutrinos are arranged in a pattern of three quasidegenerate pairs, in the range of O(1-6 GeV). Since they can violate lepton number by two units, they contribute to rare decays of Ds and Bc mesons, providing the conditions for maximal CP violation. We find that new phenomenology is possible depending on how many of on-shell pairs mediate these decays. In particular, we present new constraints on muon-heavy neutrino mixing parameters.

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JO - Physical Review D

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