Measurement of time-dependent CP asymmetries in B^0→D^((*)±)π^∓ and B^0→D^±ρ^∓ decays
Abstract
We present updated results on time-dependent CP asymmetries in fully reconstructed B^0→D^((*)±)π^∓ and B^0→D^±ρ^∓ decays in approximately 232×10^6 Υ(4S)→BB events collected with the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC. From a time-dependent maximum-likelihood fit we obtain for the parameters related to the CP violation angle 2β+γ: a^(Dπ)=-0.010±0.023±0.007, c_(lep)^(Dπ)=-0.033±0.042±0.012, a^(D*π)=-0.040±0.023±0.010, c_(lep)D^(*π)=0.049± 0.042±0.015,a^(Dρ)=-0.024±0.031±0.009, c_(lep)^(Dρ)=-0.098±0.055±0.018, where the first error is statistical and the second is systematic. Using other measurements and theoretical assumptions, we interpret the results in terms of the angles of the Cabibbo-Kobayashi-Maskawa unitarity triangle and find |sin(2β+γ)|>0.64 (0.40) at 68% (90%) confidence level.
Additional Information
© 2006 The American Physical Society. Received 2 March 2006; published 2 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.Attached Files
Published - AUBprd06n.pdf
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Additional details
- Eprint ID
- 22178
- Resolver ID
- CaltechAUTHORS:20110215-072736750
- Department of Energy (DOE)
- NSF
- Natural Sciences and Engineering Research Council (Canada) (NSERC)
- Institute of High Energy Physics (China) (IHEP)
- Commissariat à l'Énergie Atomique (French Atomic Energy Commission) (CEA)
- Centre National de la Recherche Scientifique/Institut National de Physique Nucléaire et Physique des Particules (France) (CNRS/IN2P3 )
- Bundesministerium für Bildung und Forschung (German: Federal Ministry of Education and Research; Bonn, (Germany) (BMFB)
- Deutsche Forschungsgemeinschaft (German Research Council) (DFG)
- Istituto Nazionale di Fisica Nucleare, Italy (INFN)
- Foundation for Fundamental Research on Matter (The Netherlands) (FOM)
- Research Council of Norway (NFR)
- MIST (Russia)
- PPARC (UK)
- CONACyT (Mexico)
- Marie Curie EIF (European Union)
- A. P. Sloan Foundation
- Research Corporation
- Alexander von Humboldt Foundation
- Created
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2011-02-15Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field