• Open Access

Search for Lepton Number Violating Decays B+πμ+μ+ and B+Kμ+μ+

R. Aaij et al. (LHCb Collaboration)
Phys. Rev. Lett. 108, 101601 – Published 7 March 2012

Abstract

A search is performed for the lepton number violating decay B+hμ+μ+, where h represents a K or a π, using an integrated luminosity of 36pb1 of data collected with the LHCb detector. The decay is forbidden in the standard model but allowed in models with a Majorana neutrino. No signal is observed in either channel and limits of B(B+Kμ+μ+)<5.4×108 and B(B+πμ+μ+)<5.8×108 are set at the 95% confidence level. These improve the previous best limits by factors of 40 and 30, respectively.

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  • Received 11 October 2011

DOI:https://doi.org/10.1103/PhysRevLett.108.101601

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

© 2012 CERN, for the LHCb Collaboration

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Vol. 108, Iss. 10 — 9 March 2012

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