First determination of the CP content of D→π+π-π0 and D→K+K-π0

M. Nayak, J. Libby*, S. Malde, C. Thomas, G. Wilkinson, R. A. Briere, P. Naik, T. Gershon, G. Bonvicini

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


Quantum-correlated ψ(3770)→DD decays collected by the CLEO-c experiment are used to perform first measurements of F+, the fractional CP-even content of the self-conjugate decays D→π+π-π0 and D→K+K-π0. Values of 0.968±0.017±0.006 and 0.731±0.058±0.021 are obtained for π+π-π0 and K+K-π0, respectively. It is demonstrated how modes of this sort can be cleanly included in measurements of the unitarity triangle angle γ using B→DK decays. The high CP-even content of D→π+π-π0, in particular, makes this a promising mode for improving the precision on γ.

Original languageEnglish
Pages (from-to)1-7
Number of pages7
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
StatePublished - 5 Jan 2015
Externally publishedYes


  • CP violation
  • Charm decay
  • Quantum correlations


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