First determination of the CP content of D->pi+pi-pi0 and D->K+K-pi0

Abstract

Quantum-correlated psi(3770)->DDbar 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->pi+pi-pi0 and D->K+K-pi0. Values of 0.968 +/- 0.017 +/- 0.006 and 0.731 +/- 0.058 +/- 0.021 are obtained for pi+pi-pi0 and K+K-pi0, respectively. It is demonstrated how modes of this sort can be cleanly included in measurements of the unitarity triangle angle gamma using B+/- -> D K+/- decays. The high CP-even content of D -> pi+pi-pi0, in particular, makes this a promising mode for improving the precision on gamma.

arXiv comment18 pages, 4 figures, submitted to Phys. Lett. B

References in corpus (33)

• Big-Bang Nucleosynthesis
• Averages of $b$-hadron, $c$-hadron, and $\tau$-lepton properties as of summer 2016
• Enhanced CP Violation with $B\to K{D}^0({\overline{D}}^0)$ Modes and Extraction of the CKM Angle gamma
• Determining $\gamma$ using $B^{\pm }\to D{K}^{\pm }$ with multibody D decays
• Improved Methods for Observing CP Violation in B+/- --> K+/- D0 and Measuring the CKM Phase gamma
• Model-independent determination of the strong-phase difference between D^0 and D^0-bar-> K^0_S,L h^+ h^- (h=pi,K) and its impact on the measurement of the CKM angle gamma/phi_3
• Feasibility study of model-independent approach to phi_3 measurement using Dalitz plot analysis
• Construction, Pattern Recognition and Performance of the CLEO III LiF-TEA RICH Detector
• Role of Charm Factory in Extracting CKM-Phase Information via B --> DK
• The use of quantum-correlated D^0 decays for phi3 measurement
• Measuring $D^0-{\bar{D}}^0$ Mixing and Relative Strong Phases at a Charm Factory
• Measuring $\gamma$ in $B^{\pm }\to K^{\pm }(K{K}^{\ast }{)}_D$ decays
• Observation of CP violation in B^0 -> eta' K^0 Decays
• Determination of the D0 -> K+pi- Relative Strong Phase Using Quantum-Correlated Measurements in e+e- -> D0 D0bar at CLEO
• Search for CP violation in the decay $D^{+}\to {\pi }^{-}{\pi }^{+}{\pi }^{+}$
• Study of B+- --> D_CP K+- and D^*_CP K+- decays
• Measurement of the $D\to K^{-}{\pi }^{+}$ strong phase difference in $\psi (3770)\to D^0\overline{D}{}^0$
• Observation of CP violation in B+ to DK+ decays
• CLEO-c and CESR-c: A New Frontier in Weak and Strong Interactions
• Measurement of ${CP}\xspace$ Violation Parameters with a Dalitz Plot Analysis of $B^{\pm }\to D_{{\pi }^{+}{\pi }^{-}{\pi }^0}{K}^{\pm }$
• Measurement of CP observables in B+- --> D_CP K+- decays and constraints on the CKM angle gamma
• First model-independent determination of the relative strong phase between D0 and D0B --> K0Spi+pi- and its impact on the CKM Angle gamma/phi3 measurement
• Determination of the D0 -> K-pi+pi0 and D0 -> K-pi+pi+pi- Coherence Factors and Average Strong-Phase Differences Using Quantum-Correlated Measurements
• Amplitude Analysis of the decay D^0 --> K^- K^+ pi^0
• Comparison of D --> K_s^0 pi and D --> K_L^0 pi Decay Rates
• Effect of D-Dbar mixing in the extraction of gamma with B- -> D0 K- and B- -> D0 pi- decays
• Updated Measurement of the Strong Phase in D0 --> K+pi- Decay Using Quantum Correlations in e+e- --> D0 D0bar at CLEO
• Measurements of branching fraction ratios and CP asymmetries in B+/- ->D_CP K+/- decays in hadron collisions
• Measurement of Interfering K^*+K^- and K^*-K^+ Amplitudes in the Decay D^0 --> K^+K^-pi^0
• Searches for CP Violation and ππS-Wave in the Dalitz-Plot Analysis of D0 --> π+π-\pi0
• New determination of the D0->K-pi+pi0 and D0->K-pi+pi+pi- coherence factors and average strong-phase differences
• Studies of the decays D^0 \rightarrow K_S^0K^-π^+ and D^0 \rightarrow K_S^0K^+π^-
• Isospin analysis of D0 decay to three pions

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