Analysis of Quantum Correlations in D0D‾0 Decay Rates at the ψ(3770) Energy

Details Analysis of Quantum Correlations in D0D‾0 Decay Rates at the ψ(3770) Energy Analysis of Quantum Correlations in D0D‾0 Decay Rates at the ψ(3770) Energy

Dec 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008fuin.conf..400s&link_type=abstract

FUNDAMENTAL INTERACTIONS. Proceedings of the 22nd Lake Louise Winter Institute. Held 19-24 February 2007 in Lake Louise, Alberta

Computer Science

Scientific paper

The decays of D0 and bar {D}0 mesons produced from e+e- annihilation at the ψ(3770) resonance reflect quantum correlations so that decay rates are sensitive to interference between indistinguishable final states. Using the CLEO-c detector at the Cornell Electron Storage Ring, we measure the time-independent decay rates of D0 decays to K-π+, K+π-, several CP eigenstates, and semileptonic states. We make use of both partially- and fully-reconstructed D0bar {D}0 pairs. A χ2 minimization fitter extracts from these decay rates the uncorrelated branching fractions, the ratio of doubly-Cabibbo suppressed to Cabibbo favored amplitudes rKπ, the D mixing parameter y, and the strong phase difference δKπ. By constraining the branching fractions and rKπ with independent measurements, a competitive measurement of y and a first measurement of cos δKπ can be made.

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