D0D0bar Quantum Correlations, Mixing, and Strong Phases

Details D0D0bar Quantum Correlations, Mixing, and Strong Phases D0D0bar Quantum Correlations, Mixing, and Strong Phases

2006-03-15

arxiv.org/abs/hep-ex/0603031v1

AIPConf.Proc.842:693-695,2006

Physics

High Energy Physics

High Energy Physics - Experiment

3 pages, to appear in the Proceedings of PANIC'05 (Particles and Nuclei International Conference), Santa Fe, NM, October 24-28

Scientific paper

10.1063/1.2220359

Due to the presence of the quantum correlation between the pair-produced D0 and D0bar from the decay of the psi(3770), the time-integrated single and double tag decay rates depend on charm mixing amplitudes, doubly-Cabibbo-suppressed amplitudes, and the relative strong phase, delta, between D0 and D0bar decays to identical final states. Using 281 pb^-1 of integrated luminosity collected with the CLEO-c detector on the psi(3770) resonance, we measure the absolute branching fractions of D0 decays to K-pi+, CP eigenstates, and semileptonic final states to determine cos(delta) for K-pi+ and to limit the mixing amplitude y.

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