Evidence for the two-body charmless baryonic decay B+→ pΛ¯

The LHCb Collaboration

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Abstract

A search for the rare two-body charmless baryonic decay B+→ pΛ¯ is performed with pp collision data, corresponding to an integrated luminosity of 3 fb−1, collected by the LHCb experiment at centre-of-mass energies of 7 and 8 TeV. An excess of B+→pΛ¯ candidates with respect to background expectations is seen with a statistical significance of 4.1 standard deviations, and constitutes the first evidence for this decay. The branching fraction, measured using the B+→KS0π+ decay for normalisation,(Formula Presented.)where the first uncertainty is statistical and the second systematic.
Original languageEnglish
Article number162
Number of pages18
JournalJournal of High Energy Physics
Volume2017
Issue number4
DOIs
Publication statusPublished - 2017
Externally publishedYes

Keywords

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

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