Search for the rare decay B+→μ+μ−μ+νμ

Onderwater, C. J. G. & LHCb Collaboration, Aug-2019, In : European Physical Journal C. 79, 8, 12 p., 675.

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A search for the rare leptonic decay B +. mu + mu - mu is performed using proton- proton collision data corresponding to an integrated luminosity of 4.7 fb - 1 collected by the LHCb experiment. The search is carried out in the region where the lowest of the two mu + mu - mass combinations is below 980 MeV/ c2. The data are consistent with the background- only hypothesis and an upper limit of 1.6x10 - 8 at 95% confidence level is set on the branching fraction in the stated kinematic region.

Original languageEnglish
Article number675
Number of pages12
JournalEuropean Physical Journal C
Issue number8
Publication statusPublished - Aug-2019



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