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Measurement of CP observables for the decays B^± → D^0_(CP)K^±

Aubert, B. and Albert, J. and Chen, E. and Dubois-Felsmann, G. P. and Dvoretskii, A. and Hitlin, D. G. and Minamora, J. S. and Narsky, I. and Piatenko, T. and Porter, F. C. and Ryd, A. and Samuel, A. (2006) Measurement of CP observables for the decays B^± → D^0_(CP)K^±. Physical Review D, 73 (5). Art. No. 051105. ISSN 2470-0010. doi:10.1103/PhysRevD.73.051105.

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We present a study of the decay B^- → D^0_(CP)K^± and its charge conjugate, where D^0_CP) is reconstructed in CP-even, CP-odd, and non-CP flavor eigenstates, based on a sample of 232 x 10^6 Y(4S) → BB decays collected with the BABAR detector at the PEP-II e^+e^- storage ring. We measure the partial-rate charge asymmetries A_(CP±) and the ratios R_(CP±) of the B → D^0K decay branching fractions as measured in CP^± and non-CP D^0 decays: A_(CP±) 0:35 ± 0.13(stat) ± 0.04(syst), A_(CP-)= -0.06 ± 0.13(stat) ± 0.04(syst), R_(CP+) = 0.90 ± 0.12(stat) ± 0.049syst), and R_(CP-) = 0:86 ± 0.10(stat) ± 0.05(syst).

Item Type:Article
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URLURL TypeDescription
Dubois-Felsmann, G. P.0000-0003-1598-6979
Hitlin, D. G.0000-0003-4028-6982
Porter, F. C.0000-0003-1948-8889
Additional Information:© 2006 American Physical Society. Received 27 December 2005; published 15 March 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 (U.S.A.), 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 the A. P. Sloan Foundation, Research Corporation, and Alexander von Humboldt Foundation.
Funding AgencyGrant Number
Department of Energy (DOE)UNSPECIFIED
Natural Sciences and Engineering Research Council of Canada (NSERC)UNSPECIFIED
Commissariat à l’Energie Atomique (CEA) (France)UNSPECIFIED
Centre National de la Recherche Scientifique (CNRS-IN2P3) (France)UNSPECIFIED
Bundesministerium fur Bildung und Forschung (BMBF) (Germany)UNSPECIFIED
German Deutsche Forschungsgemeinschaft (DFG) (Germany)UNSPECIFIED
Istituto Nazionale di Fisica Nucleare (INFN) (Italy)UNSPECIFIED
Foundation for Fundamental Research on Matter (FOM) (The Netherlands)UNSPECIFIED
Research Council of Norway (NFR)UNSPECIFIED
Particle Physics and Astronomy Research Council (PPARC) (UK)UNSPECIFIED
A. P. Sloan FoundationUNSPECIFIED
Research CorporationUNSPECIFIED
Alexander von Humboldt FoundationUNSPECIFIED
Issue or Number:5
Classification Code:PACS: 11.30.Er, 13.25.Hw, 14.40.Nd
Record Number:CaltechAUTHORS:20110215-140106773
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:22225
Deposited By: Benjamin Perez
Deposited On:15 Feb 2011 23:14
Last Modified:09 Nov 2021 16:03

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