New algorithms for identifying the flavour of B 0 mesons using pions and protons

Research output: Contribution to journalArticle

  • External authors:
  • Igor Babuschkin
  • Roger Barlow
  • Thomas Bird
  • Alexander Bitadze
  • Silvia Borghi
  • Jolanta Brodzicka
  • Christopher Burr
  • Lorenzo Capriotti
  • Shun Chen
  • Giulio Dujany
  • Marco Gersabeck
  • Jonathan Harrison
  • Christoph Hombach
  • Suzanne Klaver
  • George Lafferty
  • Kevin Maguire
  • Andrew Mcnab
  • Alex Pearce
  • Pablo Rodriguez Perez
  • The LHCb Collaboration


Two new algorithms for use in the analysis of pp collision are developed to identify the flavour of B0 mesons at production using pions and protons from the hadronization process. The algorithms are optimized and calibrated on data, using B0→D−π+ decays from pp collision data collected by LHCb at centre-of-mass energies of 7 and 8 TeV . The tagging power of the new pion algorithm is 60% greater than the previously available one; the algorithm using protons to identify the flavour of a B0 meson is the first of its kind.

Bibliographical metadata

Original languageEnglish
JournalEuropean Physical Journal C. Particles and Fields
Issue number238
Early online date12 Apr 2017
StatePublished - Apr 2017