Measurement of the branching fraction of B0→ J/ψπ0 decays

The Lhcb Collaboration

Research output: Contribution to journalArticlepeer-review

Abstract

The ratio of branching fractions between B0 → J/ψπ0 and B+ → J/ψK*+ decays is measured with proton-proton collision data collected by the LHCb experiment, corresponding to an integrated luminosity of 9 fb−1. The measured value is (Formula presented.) where the first uncertainty is statistical and the second is systematic. The branching fraction for B0 → J/ψπ0 decays is determined using the branching fraction of the normalisation channel, resulting in (Formula presented.) where the last uncertainty corresponds to that of the external input. This result is consistent with the current world average value and competitive with the most precise single measurement to date.

Original languageEnglish (US)
Article number65
JournalJournal of High Energy Physics
Volume2024
Issue number5
DOIs
StatePublished - May 2024

Keywords

  • B Physics
  • Branching fraction
  • Hadron-Hadron Scattering

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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