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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
openurl 
  Title Observation of the Λb0 → J/ψ Ξ- K+ and Ξb0 → J/ψ Ξ- π+ decays Type Journal Article
  Year 2025 Publication European Physical Journal C Abbreviated Journal Eur. Phys. J. C  
  Volume 85 Issue 7 Pages 812 - 15pp  
  Keywords  
  Abstract The first observation of the Xi(0)(b) -> J/psi Xi(-)pi(+) decay and the most precise measurement of the branching fraction of the Lambda(0)(b) -> J/psi Xi K--(+) decay are reported, using proton-proton collision data from the LHCb experiment collected in 2016-2018 at a centre-of-mass energy of 13\,TeV, corresponding to an integrated luminosity of 5.4 fb(-1). Using the Lambda(0)(b) -> J/psi Lambda and Xi(-)(b) -> J/psi Xi(-) decays as normalisation channels, the ratios of branching fractions are measured to be B(Lambda(0)(b) -> J/psi Xi K--(+))/B(Lambda(0)(b) -> J/psi Lambda) =(1.17 +/- 0.14 +/- 0.08) x 10(-2), B(Xi(0)(b) -> J/psi Xi(-)pi(+))/B(Xi(-)(b) -> J/psi Xi(-)) = (11.9 +/- 1.4 +/- 0.6) x 10(-2) where the first uncertainty is statistical and the second systematic.  
  Address [Bonacci, R. B.; Dekkers, S.; Egede, U.; Fujii, Y.; Hadavizadeh, T.; Harris, T. H.; Henderson, R. D. L.; Lane, J. J.; Liu, F. L.; Monk, M.; Song, R.; Walton, E. J.; Ward, J. A.] Monash Univ, Sch Phys & Astron, Melbourne, Vic, Australia, Email: luis.miguel.garcia.martin@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:001552541300001 Approved no  
  Is ISI yes International Collaboration yes  
  Call Number IFIC @ pastor @ Serial 6915  
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