Improving the precision of gamma/phi₃ via CLEO-c Measurements

2008/10/20 by Naik, P.
#FOS: Physical sciences #High Energy Physics - Experiment (hep-ex)

paper · doi:10.48550/arxiv.0810.3666

Abstract

Quantum correlations in ψ(3770) → D⁰D⁰ provide unique access to information about strong phase differences. Precision determination of the CKM phase γ/ϕ₃ via B → D K decays depends upon constraints on charm mixing amplitudes, measurements of doubly-Cabibbo suppressed amplitudes and relative phases, and studies of correlated charmed meson decays tagged by flavor or CP eigenstates. CP-tagged D⁰ → K^-π⁺π^-π⁺ decays and CP-tagged D⁰ → K⁰_Sπ⁺π^- Dalitz plots are only available at CLEO-c. Using the 818 pb^-1 CLEO-c data sample produced by the Cornell Electron Storage Ring (CESR) at √(s) = 3.77 GeV, we perform analyses of these decays. We describe the techniques used to measure the D-decay parameters, and the CLEO-c impact on measurements of γ/ϕ₃.

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