2016/04/30 by J. P. Lees, The BABAR Collaboration, V. Poireau +97
Mathematics · Physics and Astronomy · #High-Energy Particle Collisions Research #Mathematics #Mixing (physics) #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #hep-ex
paper · pdf · doi:10.1103/physrevd.93.112014
published as Phys. Rev. D 93, 112014 (2016) · 11 pages, 2 figures, to be published in Phys. Rev. D
arxiv created 2016/06/20 · openalex publication_date 2016/06/28 · arxiv updated 2016/07/06 · openalex created_date 2016/07/22 · openalex updated_date 2026/08/04
We perform the first measurement on the D0\ensuremath-D0 mixing parameters using a time-dependent amplitude analysis of the decay D0\ensuremath→\ensuremathπ+\ensuremathπ^\ensuremath-\ensuremathπ0. The data were recorded with the BABAR detector at center-of-mass energies at and near the \ensuremathΥ(4S) resonance, and correspond to an integrated luminosity of approximately 468.1 fb^\ensuremath-1. The neutral D meson candidates are selected from D*(2010)+\ensuremath→D0\ensuremathπs+ decays where the flavor at the production is identified by the charge of the low-momentum pion, \ensuremathπs+. The measured mixing parameters are x=(1.5\ifmmode±\else\textpm\fi1.2\ifmmode±\else\textpm\fi0.6)% and y=(0.2\ifmmode±\else\textpm\fi0.9\ifmmode±\else\textpm\fi0.5)%, where the quoted uncertainties are statistical and systematic, respectively.