Studies of the resonance structure in $D^0\to K^0_S K^{\pm}\pi^{\mp}$ decays - INSPIRE

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Studies of the resonance structure in $D^0\to K^0_S K^{\pm}\pi^{\mp}$ decays

LHCb

Collaboration

Sep 22, 2015

35 pages

Published in:

Phys.Rev.D 93 (2016) 5, 052018

Published: Mar 31, 2016

e-Print:

1509.06628 [hep-ex]

DOI:

10.1103/PhysRevD.93.052018

PDG: CHARGED ONLY, HADROPRODUCED

Report number:

CERN-PH-EP-2015-238,
LHCB-PAPER-2015-026

Experiments:

CERN-LHC-LHCb

View in:

reference search63 citations

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Abstract: (APS)

Amplitude models are applied to studies of resonance structure in D0→KS0K-π+ and D0→KS0K+π- decays using pp 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/c2 around the K*(892)± resonance. Two formulations for the Kπ S-wave are used, both of which give a good description of the data. The ratio of branching fractions B(D0→KS0K+π-)/B(D0→KS0K-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 CP 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:

56 pages, 27 tables, 12 figures. Updated to published version

p p: scattering
p p: colliding beams
D0: hadronic decay
D0: branching ratio
branching ratio: ratio
symmetry: flavor
CP: violation
asymmetry: CP
phase space
structure

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