Dalitz plot analysis of the D+ → K K+ K+ decay

The LHCb Collaboration

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Abstract

The resonant structure of the doubly Cabibbo-suppressed decay D+→K−K+K+
is studied for the first time. The measurement is based on a sample of pp-collision data, collected at a centre-of-mass energy of 8 TeV with the LHCb detector and corresponding to an integrated luminosity of 2 fb−1. The amplitude analysis of this decay is performed with the isobar model and a phenomenological model based on an effective chiral Lagrangian. In both models the S-wave component in the K−K+ system is dominant, with a small contribution of the φ(1020) meson and a negligible contribution from tensor resonances. The K+K− scattering amplitudes for the considered combinations of spin (0,1) and isospin (0,1) of the two-body system are obtained from the Dalitz plot fit with the phenomenological decay amplitude
Original languageEnglish
Article number63
Number of pages36
JournalJournal of High Energy Physics
Volume2019
Issue number4
DOIs
Publication statusPublished - 2019
Externally publishedYes

Keywords

  • Charm physics
  • Hadron-Hadron scattering (experiments)
  • Particle and resonance production

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