Measurement of branching fractions of charmless four-body Λ0b and Ξ0b decays

LHCb Collaboration

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Abstract

A search for charmless four-body decays of Λ b 0 and Ξ b 0 baryons with a proton and three charged mesons (either kaons or pions) in the final state is performed. The data sample used was recorded in 2011 and 2012 with the LHCb experiment and corresponds to an integrated luminosity of 3 fb−1. Six decay modes are observed, among which Λ b 0  → pKπ+π, Λ b 0  → pKK+K, Ξ b 0  → pKπ+π and Ξ b 0  → pKπ+K are established for the first time. Their branching fractions (including the ratio of hadronisation fractions in the case of the Ξ b 0 baryon) are determined relative to the Λ b 0  → Λ c + π decay.
Original languageEnglish
Article number98
Number of pages25
JournalJournal of High Energy Physics
Volume2018
Issue number2
Early online date16 Feb 2018
DOIs
Publication statusPublished - Feb 2018

Keywords

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

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    Goldstein, J.

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