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Published October 30, 2013 | Published + Submitted
Journal Article Open

Measurement of the mass of the D^0 meson


We report a measurement of the D^0 meson mass using the decay chain D^∗(2010)^+→D^0π^+ with D^0→K^−K^−K^+π^+. 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 477  fb^(−1). We obtain m(D^0)=(1864.841±0.048±0.063)  MeV, where the quoted errors are statistical and systematic, respectively. The uncertainty of this measurement is half that of the best previous measurement.

Additional Information

© 2013 American Physical Society. Received 6 August 2013; published 30 October 2013. We are grateful for the extraordinary contributions of our PEP-II 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 Ciencia e Innovaciόn (Spain), and the Science and Technology Facilities Council (United Kingdom). Individuals have received support from the Marie-Curie IEF program (European Union) and the A. P. Sloan Foundation (USA). The University of Cincinnati is gratefully acknowledged for its support of this research through a WISE (Women in Science and Engineering) fellowship to C. Pappenheimer.

Attached Files

Published - PhysRevD.88.071104.pdf

Submitted - 1308.1151v1.pdf


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