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

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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.

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Journal of High Energy Physics, 2019, p. 63

# metadata.dc.rights[].value
cc-by (c) LHCb Collaboration et al., 2019

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Articles publicats en revistes (Física Quàntica i Astrofísica)

# metadata.dc.title[].value
Dalitz plot analysis of the D + → K − K + K + decay