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Published June 2016 | Published + Submitted
Journal Article Open

Measurement of the neutral D meson mixing parameters in a time-dependent amplitude analysis of the D^0→π^+π^−π^0 decay


We perform the first measurement on the D^0−D^0 mixing parameters using a time-dependent amplitude analysis of the decay D^0→π^+π^−π^0. 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)^+→D^0π^+_s decays where the flavor at the production is identified by the charge of the low-momentum pion, π^+_s. 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.

Additional Information

© 2016 American Physical Society. Received 4 April 2016; published 28 June 2016. We are grateful for the extraordinary contributions of our PEP-II2 colleagues in achieving the excellent luminosity and machine conditions that have made this work possible. The success of this project also relies critically on the expertise and dedication of the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and the kind hospitality extended to them. This work is supported by the U.S. Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), the Commissariat à l'Energie Atomique and Institut National de Physique Nucléaire et de Physique des Particules (France), the Bundesministerium für Bildung und Forschung and Deutsche Forschungsgemeinschaft (Germany), the Istituto Nazionale di Fisica Nucleare (Italy), the Foundation for Fundamental Research on Matter (The Netherlands), the Research Council of Norway, the Ministry of Education and Science of the Russian Federation, Ministerio de Economía y Competitividad (Spain), the Science and Technology Facilities Council (United Kingdom), and the Binational Science Foundation (U.S.-Israel). Individuals have received support from the Marie-Curie IEF program (European Union) and the A. P. Sloan Foundation (U.S.).

Attached Files

Published - PhysRevD.93.112014.pdf

Submitted - 1604.00857v2.pdf


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August 20, 2023
October 20, 2023