Searches for heavy Majorana neutrinos in B- decays in final states containing hadrons plus a mu(-) mu(-) pair have been performed using 0.41 fb(-1) of data collected with the LHCb detector in proton-proton collisions at a center-of-mass energy of 7 TeV. The D+ mu(-) mu(-) and D*+ mu(-) mu(-) final states can arise from the presence of virtual Majorana neutrinos of any mass. Other final states containing pi(+), D-s(+), or D-0 pi(+) can be mediated by an on-shell Majorana neutrino. No signals are found and upper limits are set on Majorana neutrino production as a function of mass, and also on the B- decay branching fractions.

Aaij, R., Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2012). Searches for Majorana neutrinos in B- decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(11) [10.1103/PhysRevD.85.112004].

Searches for Majorana neutrinos in B- decays

CALVI, MARTA;FANCHINI, ERICA;Pessina, G;
2012

Abstract

Searches for heavy Majorana neutrinos in B- decays in final states containing hadrons plus a mu(-) mu(-) pair have been performed using 0.41 fb(-1) of data collected with the LHCb detector in proton-proton collisions at a center-of-mass energy of 7 TeV. The D+ mu(-) mu(-) and D*+ mu(-) mu(-) final states can arise from the presence of virtual Majorana neutrinos of any mass. Other final states containing pi(+), D-s(+), or D-0 pi(+) can be mediated by an on-shell Majorana neutrino. No signals are found and upper limits are set on Majorana neutrino production as a function of mass, and also on the B- decay branching fractions.
Articolo in rivista - Articolo scientifico
Flavor physics ; B physics ; rare decay ; Lepton flavour violation; Majorana neutrino;
English
11-giu-2012
85
11
none
Aaij, R., Beteta, C., Adeva, B., Adinolfi, M., Adrover, C., Affolder, A., et al. (2012). Searches for Majorana neutrinos in B- decays. PHYSICAL REVIEW D, PARTICLES, FIELDS, GRAVITATION, AND COSMOLOGY, 85(11) [10.1103/PhysRevD.85.112004].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/37954
Citazioni
  • Scopus 71
  • ???jsp.display-item.citation.isi??? 42
Social impact