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; Marín Benito, Carla; Picatoste Olloqui, Eduardo; Rives Molina, Vicente José; Ruiz, Hugo (Ruiz Pérez); LHCb Collaboration
|
Other authors:
|
Universitat de Barcelona |
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. |
Subject(s):
|
-Hadrons -Mesons (Física nuclear) -Hadrons -Mesons (Nuclear physics) |
Rights:
|
(c) American Physical Society, 2016
|
Document type:
|
Article Article - Published version |
Published by:
|
American Physical Society
|
Share:
|
|