Searches for Majorana neutrinos in B-decays
LHCb Collaboration (Including: Back, J. J., Dossett, D., Gershon, T. J., Harrison, P. F., Kreps, Michal, Latham, Thomas, Pilar, T., Poluektov, Anton, Reid, Matthew M., Silva Coutinho, R., Whitehead, M. (Mark) and Williams, M. P.). (2012) Searches for Majorana neutrinos in B-decays. Physical Review D, Vol.85 (No.11). ISSN 1550-7998
WRAP_Marsh_1201.5600v3.pdf - Accepted Version
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Official URL: http://dx.doi.org/10.1103/PhysRevD.85.112004
Searches for heavy Majorana neutrinos in B- decays in final states containing hadrons plus a μ-μ- 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+μ-μ- and D*+μ-μ- final states can arise from the presence of virtual Majorana neutrinos of any mass. Other final states containing π+, Ds+, or D0π+ 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.
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