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Published June 30, 2006 | Published
Journal Article Open

Search For T, CP, and CPT Violation in B^0-B^0 Mixing with Inclusive Dilepton Events


We report the results of a search for T, CP, and CPT violation in B^0-B^0 mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II B factory. Using a sample of 232×10^6 BB pairs, we measure the T and CP violation parameter |q/p|-1=(-0.8±2.7(stat)±1.9(syst))×10^(-3), and the CPT and CP parameters Imz=(-13.9±7.3(stat)±3.2(syst))×10^(-3) and ΔΓ×Rez=(-7.1±3.9(stat)±2.0(syst))×10^(-3)  ps^(-1). The statistical correlation between the measurements of Imz and ΔΓ×Rez is 76%.

Additional Information

© 2006 The American Physical Society. Received 29 March 2006; published 28 June 2006. We are grateful for the excellent luminosity and machine conditions provided by our PEP-II colleagues, and for the substantial dedicated effort from the computing organizations that support BABAR. The collaborating institutions wish to thank SLAC for its support and kind hospitality. This work is supported by DOE and NSF (USA), NSERC (Canada), IHEP (China), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (The Netherlands), NFR (Norway), MIST (Russia), and PPARC (United Kingdom). Individuals have received support from CONACyT (Mexico), Marie Curie EIF (European Union), the A. P. Sloan Foundation, the Research Corporation, and the Alexander von Humboldt Foundation.

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