2002/07/31 by David Atwood, Alexey A. Petrov
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1103/physrevd.71.054032
published as Phys.Rev. D71 (2005) 054032 · 14 pages, 0 figures; 2 references added, results unchanged
arxiv created 2002/08/15 · openalex publication_date 2005/03/31 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Heavy meson pairs produced in the decays of heavy quarkonium resonances at e+e^\ensuremath- 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 \ensuremathΔ\ensuremathΓD and other mixing parameters. In particular, for the decay \ensuremathψ(3770)\ensuremath→D0D0 the correlation of a flavor specific decay of one D with a CP-specific decay of the other D is linearly sensitive to the D0 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.