2026-04-17T23:26:33Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1622952025-12-05T16:42:36Zcom_2072_1057col_2072_478823col_2072_478904col_2072_478917

00925njm 22002777a 4500 dc LHCb Collaboration author Alfonso Albero, Alejandro author Calvo Gómez, Míriam author Camboni, Alessandro author Coquereau, Samuel author Garrido Beltrán, Lluís author Gascón Fora, David author Gironella Gironell, Pere author Graciani Díaz, Ricardo author Graugés Pous, Eugeni author Vilasis-Cardona, Xavier author Marin Benito, Carla author 2020-05-25T13:21:36Z 2020-05-25T13:21:36Z 2019-04-08 2020-05-25T13:21:36Z 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. Hadrons Física de partícules Experiments Hadrons Particle physics Experiments Dalitz plot analysis of the D + → K − K + K + decay