Measurement of the neutral $D$ meson mixing parameters in a time-dependent amplitude analysis of the $D^0\to\pi^+\pi^-\pi^0$ decay

We perform the first measurement on the D0-D¯0 mixing parameters using a time-dependent amplitude analysis of the decay D0→π+π-π0. The data were recorded with the BABAR detector at center-of-mass energies at and near the ϒ(4S) resonance, and correspond to an integrated luminosity of approximately 468.1 fb-1. The neutral D meson candidates are selected from D*(2010)+→D0πs+ decays where the flavor at the production is identified by the charge of the low-momentum pion, πs+. The measured mixing parameters are x=(1.5±1.2±0.6)% and y=(0.2±0.9±0.5)%, where the quoted uncertainties are statistical and systematic, respectively.

Note:

11 pages, 2 figures, to be published in Phys. Rev. D

electron positron: annihilation
amplitude analysis: time dependence
D0: hadronic decay
D*(2010): hadronic decay
decay: amplitude analysis
D0 anti-D0: mixing
momentum: low
mass spectrum: (pi+ pi-)
Upsilon(10570): electroproduction
statistical

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Measurement of the neutral DDD meson mixing parameters in a time-dependent amplitude analysis of the D0→π+π−π0D^0\to\pi^+\pi^-\pi^0D0→π+π−π0 decay

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Measurement of the neutral $D$ meson mixing parameters in a time-dependent amplitude analysis of the $D^0\to\pi^+\pi^-\pi^0$ decay