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Author (up) LHCb Collaboration (Aaij, R. et al); Fernandez Casani, A.; Jaimes Elles, S.J.; Jashal, B.K.; Libralon, S.; Martinez-Vidal, F.; Mazorra de Cos, J.; Oyanguren, A.; Rebollo De Miguel, M.; Sanderswood, I.; Zhuo, J. url  doi
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  Title Search for B(s)*0 → μ+μ- in Bc+ → π+μ+μ- decays Type Journal Article
  Year 2025 Publication European Physical Journal C Abbreviated Journal Eur. Phys. J. C  
  Volume 85 Issue 1 Pages 20 - 16pp  
  Keywords  
  Abstract A search for the very rare B-*0 -> mu(+) mu(-) and B-(s)(*0) -> mu(+)mu(-) decays is conducted by analysing the B-c(+) -> pi(+)mu(+) mu(-) process. The analysis uses proton-proton collision data collected with the LHCb detector between 2011 and 2018, corresponding to an integrated luminosity of 9 fb(-1). The signal signatures correspond to simultaneous peaks in the mu(+) mu(-) and pi(+)mu(+) mu(-) invariant masses. No evidence for an excess of events over background is observed for either signal decay mode. Upper limits at the 90% confidence level are set on the branching fractions relative to that for B-c(+) -> J/psi pi(+) decays, RB*0( mu+ mu-)pi+ / J/psi pi+ < 3.8 x 10(-5) and RBs*0( mu+ mu-)pi+ / J/psi pi+ < 5.0 x 10(-5).  
  Address [Dekkers, S.; Egede, U.; Fujii, Y.; Hadavizadeh, T.; Henderson, R. D. L.; Lane, J. J.; Liu, F. L.; Monk, M.; Petrolini, A.; Song, R.; Walton, E. J.; Ward, J. A.; Yang, Y.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia, Email: fernando.abudinen@cern.ch  
  Corporate Author Thesis  
  Publisher Springer Place of Publication Editor  
  Language English Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1434-6044 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:001509525400001 Approved no  
  Is ISI yes International Collaboration yes  
  Call Number IFIC @ pastor @ Serial 6726  
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