Related Experiment Video
Updated: May 23, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
Search for lepton number violating decays B+ → π- μ+ μ+ and B+ → K- μ+ μ+
R Aaij1, C Abellan Beteta, B Adeva
1Nikhef National Institute for Subatomic Physics, Amsterdam, The Netherlands.
Abstract:
A search is performed for the lepton number violating decay B+ → h- μ+ μ+, where h- represents a K- or a π-, using an integrated luminosity of 36 pb(-1) 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+ → K- μ+ μ+) < 5.4×10(-8) and B(B+ → π- μ+ μ+) < 5.8×10(-8) are set at the 95% confidence level. These improve the previous best limits by factors of 40 and 30, respectively.
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