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Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/133722
Search for Lepton Number Violating Decays B+→π−μ+μ+ and B+→K−μ+μ+
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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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ABELLAN BETETA, Carlos, et al. Search for Lepton Number Violating Decays B+→π−μ+μ+ and B+→K−μ+μ+. Physical Review Letters. 2012. Vol. 108, num. 10, pags. 101601. ISSN 0031-9007. [consulted: 17 of June of 2026]. Available at: https://hdl.handle.net/2445/133722