We perform the first measurement on the D0-D0 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.
Lees, J., Poireau, V., Tisserand, V., Grauges, E., Palano, A., Eigen, G., et al. (2016). Measurement of the neutral D meson mixing parameters in a time-dependent amplitude analysis of the D0 →π+π-π0 decay. PHYSICAL REVIEW D, 93(11) [10.1103/PhysRevD.93.112014].
Measurement of the neutral D meson mixing parameters in a time-dependent amplitude analysis of the D0 →π+π-π0 decay
CARPINELLI, MassimoMembro del Collaboration Group
;
2016
Abstract
We perform the first measurement on the D0-D0 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.
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