TY - JOUR
T1 - First determination of the CP content of D→π+π-π0 and D→K+K-π0
AU - Nayak, M.
AU - Libby, J.
AU - Malde, S.
AU - Thomas, C.
AU - Wilkinson, G.
AU - Briere, R. A.
AU - Naik, P.
AU - Gershon, T.
AU - Bonvicini, G.
N1 - Publisher Copyright:
© 2014 The Authors.
PY - 2015/1/5
Y1 - 2015/1/5
N2 - 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.
AB - 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.
KW - CP violation
KW - Charm decay
KW - Quantum correlations
UR - http://www.scopus.com/inward/record.url?scp=84919338729&partnerID=8YFLogxK
U2 - 10.1016/j.physletb.2014.11.022
DO - 10.1016/j.physletb.2014.11.022
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AN - SCOPUS:84919338729
SN - 0370-2693
VL - 740
SP - 1
EP - 7
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -