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arXiv · 1302.1504

Bounding resonant Majorana neutrinos from four-body B and D decays

Gabriel Lopez Castro·Nestor Quintero
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Abstract

Searches of lepton-number violation in different processes are very useful to constrain the parameter space of Majorana neutrinos. Here we use available upper bounds on the branching fractions of B^- -> D^0pi^+mu^-mu^- and D^0 -> (pi^-pi^-/K^-pi^-) mu^-mu^- decays to derive constraints on the mass and mixings of Majorana neutrinos by assuming they are produced resonantly in these four-body decays. While the excluded region obtained from B^- decays are competitive with existing limits from three-body D^- and B^- decays, it is shown that experimental improvements on D^0 decays offer a good potential to provide similar results.

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Gabriel Lopez Castro, Nestor Quintero. 2013-05-08. Bounding resonant Majorana neutrinos from four-body B and D decays. https://doi.org/10.1103/physrevd.87.077901

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