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Title: | Studies of the resonance structure in D0 → KS0 K±π decays |
Author: | Garrido Beltrán, Lluís Gascón Fora, David Graciani Díaz, Ricardo Graugés Pous, Eugeni Marin Benito, Carla Picatoste Olloqui, Eduardo Rives Molina, Vicente José Ruiz, Hugo (Ruiz Pérez) LHCb Collaboration |
Keywords: | Hadrons Mesons (Física nuclear) Hadrons Mesons (Nuclear physics) |
Issue Date: | 31-Mar-2016 |
Publisher: | American Physical Society |
Abstract: | Amplitude models are applied to studies of resonance structure in D 0 → K 0 S K − π + and D 0 → K 0 S K + π − decays using p p collision data corresponding to an integrated luminosity of 3.0 fb − 1 collected by the LHCb experiment. Relative magnitude and phase information is determined, and coherence factors and related observables are computed for both the whole phase space and a restricted region of 100 MeV / c 2 around the K ∗ ( 892 ) ± resonance. Two formulations for the K π S -wave are used, both of which give a good description of the data. The ratio of branching fractions B ( D 0 → K 0 S K + π − ) / B ( D 0 → K 0 S K − π + ) is measured to be 0.655 ± 0.004 ( stat ) ± 0.006 ( syst ) over the full phase space and 0.370 ± 0.003 ( stat ) ± 0.012 ( syst ) in the restricted region. A search for C P violation is performed using the amplitude models and no significant effect is found. Predictions from SU(3) flavor symmetry for K ∗ ( 892 ) K amplitudes of different charges are compared with the amplitude model results. |
Note: | Reproducció del document publicat a: https://doi.org/10.1103/PhysRevD.93.052018 |
It is part of: | Physical Review D, 2016, vol. 93, num. 5, p. 052018-1-052018-35 |
URI: | http://hdl.handle.net/2445/123650 |
Related resource: | https://doi.org/10.1103/PhysRevD.93.052018 |
ISSN: | 2470-0010 |
Appears in Collections: | Articles publicats en revistes (Institut de Ciències del Cosmos (ICCUB)) Articles publicats en revistes (Física Quàntica i Astrofísica) |
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669701.pdf | 2.27 MB | Adobe PDF | View/Open |
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