Published February 27, 2015
| Published + Submitted
Journal Article
Open
Study of CP Asymmetry in B^0-B^0 Mixing with Inclusive Dilepton Events
Chicago
Abstract
We present a measurement of the asymmetry ACP between same-sign inclusive dilepton samples ℓ^+ℓ^+ and ℓ^−ℓ^− (ℓ=e, μ) from semileptonic B decays in Υ(4S)→BB events, using the complete data set recorded by the BABAR experiment near the Υ(4S) resonance, corresponding to 471×10^6 BB pairs. The asymmetry ACP allows comparison between the mixing probabilities P(B^0→B^0) and P(B^0→B^0), and therefore probes CP and T violation. The result, A_(CP)=[−3.9±3.5(stat)±1.9(syst)]×10^(−3), is consistent with the standard model expectation.
Additional Information
© 2015 American Physical Society. Received 10 November 2014; published 25 February 2015. 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 (U.S.), NSERC (Canada), CEA and CNRS-IN2P3 (France), BMBF and DFG (Germany), INFN (Italy), FOM (Netherlands), NFR (Norway), MES (Russia), MINECO (Spain), STFC (United Kingdom), and BSF (U.S.-Israel). Individuals have received support from the Marie Curie EIF (European Union) and the A. P. Sloan Foundation (U.S.).Attached Files
Published - PhysRevLett.114.081801.pdf
Submitted - 1411.1842v1.pdf
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PhysRevLett.114.081801.pdf
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Additional details
- Eprint ID
- 56476
- Resolver ID
- CaltechAUTHORS:20150408-100214374
- Department of Energy (DOE)
- NSF
- Natural Sciences and Engineering Research Council of Canada (NSERC)
- 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)
- Norwegian Research Council
- Ministry of Education and Science of the Russian Federation
- MINECO (Spain)
- Science and Technology Facilities Council (STFC)
- Binational Science Foundation (USA-Israel)
- Marie Curie Fellowship
- Alfred P. Sloan Foundation
- Deutsche Forschungsgemeinschaft (DFG)
- Centre National de la Recherche Scientifique (CNRS)
- Created
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2015-04-08Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field