Studies of the resonance structure in D0 → KS0 K±π decays STUDIES of the RESONANCE STRUCTURE in ⋯ R. AAIJ et al.

(LHCb Collaboration)

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article number052018
JournalPhysical Review D
Volume93
Issue number5
DOIs
StatePublished - Mar 31 2016

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decay
CP violation
S waves
luminosity
formulations
collisions
symmetry
predictions

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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Studies of the resonance structure in D0 → KS0 K±π decays STUDIES of the RESONANCE STRUCTURE in ⋯ R. AAIJ et al. / (LHCb Collaboration).

In: Physical Review D, Vol. 93, No. 5, 052018, 31.03.2016.

Research output: Contribution to journalArticle

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title = "Studies of the resonance structure in D0 → KS0 K±π decays STUDIES of the RESONANCE STRUCTURE in ⋯ R. AAIJ et al.",
abstract = "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.",
author = "{(LHCb Collaboration)} and R. Aaij and B. Adeva and M. Adinolfi and A. Affolder and Z. Ajaltouni and S. Akar and J. Albrecht and F. Alessio and M. Alexander and S. Ali and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and J. Anderson and G. Andreassi and M. Andreotti and Andrews, {J. E.} and Appleby, {R. B.} and {Aquines Gutierrez}, O. and F. Archilli and P. D'Argent and A. Artamonov and Marina Artuso and E. Aslanides and G. Auriemma and M. Baalouch and S. Bachmann and Back, {J. J.} and A. Badalov and C. Baesso and W. Baldini and Barlow, {R. J.} and C. Barschel and S. Barsuk and W. Barter and V. Batozskaya and V. Battista and A. Bay and L. Beaucourt and J. Beddow and F. Bedeschi and I. Bediaga and Blusk, {Steven Roy} and Tomasz Skwarnicki and Sheldon Stone",
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