Improved determination of the D→K-π+π+π- coherence factor and associated hadronic parameters from a combination of e+e-→ψ(3770)→cc- and ΡΡ→cc¯X data

T. Evans, Sam T Harnew, J. Libby, S. Malde, Jonas Rademacker, G. Wilkinson*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)

17 Citations (Scopus)
199 Downloads (Pure)

Abstract

Measurements of the coherence factor RK3π, the average strong-phase difference δDK3π and mean amplitude ratio rDK3π for the decay D→K-π+π+π- are presented. These parameters are important inputs to the determination of the unitarity triangle angle γ in B-→DK- decays, where D designates a superposition of D0 and D-0 mesons decaying to a common final state. The results are based on a combined fit to observables obtained from a re-analysis of the CLEO-c ψ(3770) data set and those measured in a D0D-0 mixing study performed by the LHCb Collaboration.

Original languageEnglish
Pages (from-to)520-527
Number of pages8
JournalPhysics Letters B
Volume757
Early online date20 Apr 2016
DOIs
Publication statusPublished - 10 Jun 2016

Keywords

  • Charm decay
  • CP violation
  • Quantum correlations
  • coherence factor
  • charm mixing
  • gamma

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