Observation of the semileptonic decay B+→ pp¯ μ+νμ

The Lhcb Collaboration

Research output: Contribution to journalArticle

Abstract

The Cabibbo-suppressed semileptonic decay B+→ pp¯ μ+νμ is observed for the first time using a sample of pp collisions corresponding to an integrated luminosity of 1.0, 2.0 and 1.7 fb−1 at centre-of-mass energies of 7, 8 and 13 TeV, respectively. The differential branching fraction is measured as a function of the pp¯ invariant mass using the decay mode B+→ J/ψK+ for normalisation. The total branching fraction is measured to be ℬ(B+→pp¯μ+νμ)=(5.27−0.24+0.23±0.21±0.15)×10−6, where the first uncertainty is statistical, the second systematic and the third is from the uncertainty on the branching fraction of the normalisation channel. [Figure not available: see fulltext.]

Original languageEnglish (US)
Article number146
JournalJournal of High Energy Physics
Volume2020
Issue number3
DOIs
StatePublished - Mar 1 2020

Keywords

  • B physics
  • Branching fraction
  • Flavor physics
  • Hadron-Hadron scattering (experiments)

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Observation of the semileptonic decay B<sup>+</sup>→ pp¯ μ<sup>+</sup>ν<sub>μ</sub>'. Together they form a unique fingerprint.

  • Cite this