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Published July 1, 2006 | Version Published
Journal Article Open

Measurements of the branching fraction and time-dependent CP asymmetries of B^0→J/ψπ^0 decays

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Abstract

We present measurements of the branching fraction and time-dependent CP asymmetries in B^0→J/ψπ^0 decays based on (231.8±2.6)×10^6  Υ(4S)→BB decays collected with the BABAR detector at the SLAC PEP-II asymmetric-energy B factory. We obtain a branching fraction B(B^0→J/ψπ^0)=(1.94±0.22(stat)±0.17(syst))×10^(-5). We also measure the CP asymmetry parameters C=-0.21±0.26(stat)±0.06(syst) and S=-0.68±0.30(stat)±0.04(syst).

Additional Information

© 2006 The American Physical Society. Received 6 March 2006; published 10 July 2006. 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 US Department of Energy and National Science Foundation, the Natural Sciences and Engineering Research Council (Canada), Institute of High Energy Physics (China), 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 Science and Technology of the Russian Federation, and the Particle Physics and Astronomy Research Council (United Kingdom). Individuals have received support from CONACyT (Mexico), the Marie-Curie Intra European Fellowship program (European Union), the A. P. Sloan Foundation, the Research Corporation, and the Alexander von Humboldt Foundation.

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Identifiers

Eprint ID
22153
Resolver ID
CaltechAUTHORS:20110214-074434843

Funding

Department of Energy (DOE)
NSF
Natural Sciences and Engineering Research Council of Canada (NSERC)
Institute of High Energy Physics (China)
Commissariat à l'Energie Atomique (CEA)
Bundesministerium für Bildung und Forschung (BMBF)
Istituto Nazionale di Fisica Nucleare (INFN)
Stichting voor Fundamenteel Onderzoek der Materie (FOM)
Research Council of Norway
Ministry of Science and Technology of the Russian Federation
Particle Physics and Astronomy Research Council (PPARC)
Consejo Nacional de Ciencia y Tecnología (CONACYT)
Marie Curie Fellowship
Alfred P. Sloan Foundation
Research Corporation
Alexander von Humboldt Foundation
Institut National de Physique Nucléaire et de Physique des Particules (IN2P3)
Deutsche Forschungsgemeinschaft (DFG)

Dates

Created
2011-02-14
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Updated
2021-11-09
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