Amplitude analysis of Bs0 → KS0± π decays

The LHCb Collaboration

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4 Citations (Scopus)

Abstract

The first untagged decay-time-integrated amplitude analysis of Bs0 → KS0K±π∓ decays is performed using a sample corresponding to 3.0 fb−1 of pp collision data recorded with the LHCb detector during 2011 and 2012. The data are described with an amplitude model that contains contributions from the intermediate resonances K*(892)0,+, K2*(1430)0,+ and K0*(1430)0,+, and their charge conjugates. Measurements of the branching fractions of the decay modes Bs0 → K*(892)±K∓ and Bs0→K*(—)(892)0K0(—) are in agreement with, and more precise than, previous results. The decays Bs0 → K0*(1430)±K∓ and Bs0→K0*(—)(1430)0K0(—) are observed for the first time, each with significance over 10 standard deviations.
Original languageEnglish
Article number114
Number of pages28
JournalJournal of High Energy Physics
Volume2019
Issue number6
DOIs
Publication statusPublished - 2019
Externally publishedYes

Keywords

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

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