Journal
PHYSICAL REVIEW D
Volume 71, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.71.054032
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Heavy meson pairs produced in the decays of heavy quarkonium resonances at e(+)e(-) machines (beauty and tau-charm factories) have the useful property that the two mesons are in the CP-correlated states. We show that this leads to time-independent correlations allowing the extraction of the lifetime difference Delta Gamma(D) and other mixing parameters. In particular, for the decay psi(3770) -> D-0(D) over bar (0) the correlation of a flavor specific decay of one D with a CP-specific decay of the other D is linearly sensitive to the Do lifetime difference. The utility of this method is considered at CLEO-c as well as future threshold charm factories. We include the impact of possible CP-violating effects and present the complete results for time-integrated CP-entangled decay rates with CP violation taken into account. We comment on the utility of using this method to extract the lifetime difference of neutral B mesons at future high luminosity B factories.
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