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

Robert Appleby, Silvia Borghi, Christopher Burr, Stefano De Capua, Deepanwita Dutta, Evelina Gersabeck, Marco Gersabeck, Lucia Grillo, Martha Hilton, George Lafferty, Andrew Mcnab, Christopher Parkes, Gediminas Sarpis, Mark Williams, The LHCb Collaboration

    Research output: Contribution to journalArticlepeer-review

    Abstract

    The resonant structure of the doubly Cabibbo-suppressed decay D+→KK+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 KK+ 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.Open image in new window
    Original languageEnglish
    JournalThe Journal of High Energy Physics
    Volume2019
    Issue number63
    Early online date8 Apr 2019
    DOIs
    Publication statusPublished - Apr 2019

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