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G. Alkhazov; M. Andreotti; E. Aslanides; M. Atzeni; A. Baranov; V. Batozskaya; B. Batsukh; N. Beliy; R. Bernet; V. Bocci; T. Boettcher; A. Bondar; T. J. V. Bowcock; J. Brodzicka; A. Camboni; P. Campana; G. Casse; R. Cenci; G. Chatzikonstantinidis; G. Ciezarek; F. Cindolo; J. Cogan; S. De Capua; M. De Cian; O. Deschamps; A. Dosil Suárez; J. M. Durham; D. Dutta; S. Eisenhardt; L. Ferreira Lopes; M. Ferro-Luzzi; M. Fiorini; R. Forty; B. Garcia Plana; D. Gerick; D. Gerstel; A. Gomes; B. R. Gruberg Cazon; T. Hadavizadeh; L. Henry; W. Huang; J. Jalocha; S. Kandybei; N. Kazeev; S. Klaver; A. K. Kuonen; D. Lancierini; A. Leflat; B. Leverington; P.-R. Li; Z. Li; V. Lisovskyi; A. Lupato; G. Manca; D. Marangotto; C. Matteuzzi; R. D. Moise; K. Müller; T. Nanut; C. Nguyen-Mau; A. Nogay; C. J. G. Onderwater; M. Poli Lener; E. Price; A. Puig Navarro; J. Qin; F. Ratnikov; V. Renaudin; M. Rotondo; M. S. Rudolph; N. Sagidova; V. Salustino Guimaraes; T. Schmelzer; B. Schmidt; J. Serrano; L. Silva de Oliveira; I. Skiba; B. Souza De Paula; P. Spradlin; M. Stahl; A. Stocchi; S. Stracka; T. Szumlak; M. J. Tilley; M. Traill; A. Tully; N. Tuning; A. Usachov; A. Vagner; G. Veneziano; D. Vieira; D. Vom Bruch; M. Wilkinson; S. A. Wotton; D. Xiao; Z. Xu; J. Yu; O. Yushchenko; M. Zavertyaev; D. Zhang
The European physical journal. C, Particles and fields, 08/2019, Letnik: 79, Številka: 8Journal Article
Abstract A search for the rare leptonic decay $${{{B} ^+}} \!\rightarrow {\mu ^+} {\mu ^-} {\mu ^+} {{\upnu } _\mu } $$ B+→μ+μ-μ+νμ is performed using proton-proton collision data corresponding to an integrated luminosity of $$4.7 \, {\hbox {fb}}^{-1}$$ 4.7fb-1 collected by the LHCb experiment. The search is carried out in the region where the lowest of the two $${\mu ^+\mu ^-} $$ μ+μ- mass combinations is below $$980 {\mathrm {\,MeV\!/}c^2} $$ 980MeV/c2 . The data are consistent with the background-only hypothesis and an upper limit of $$1.6 \times 10^{-8}$$ 1.6×10-8 at 95% confidence level is set on the branching fraction in the stated kinematic region.
