{ "id": "hep-ex/0703021", "version": "v2", "published": "2007-03-12T21:15:22.000Z", "updated": "2007-11-05T11:58:10.000Z", "title": "Improved Measurement of CP Violation in Neutral B Decays to c cbar s", "authors": [ "The BABAR Collaboration", "B. aubert" ], "comment": "7 pages, 2 postscript figures. Final version published on Phys. Rev. Lett. The table with detailed systematic uncertainties is now included separately in EPAPS due to space constraints", "journal": "Phys.Rev.Lett.99:171803,2007", "doi": "10.1103/PhysRevLett.99.171803", "categories": [ "hep-ex" ], "abstract": "We present updated measurements of time-dependent CP asymmetries in fully-reconstructed neutral B decays to several CP eigenstates containing a charmonium meson. The measurements use a data sample of (383 +/- 4) x 10^6 Y(4S)-> BBbar decays collected with the BABAR detector at the PEP-II B factory. We determine sin2beta = 0.714 +/- 0.032 (stat) +/- 0.018 (syst) and |lambda| = 0.952 +/- 0.022 (stat) +/- 0.017 (syst).", "revisions": [ { "version": "v2", "updated": "2007-11-05T11:58:10.000Z" } ], "analyses": { "subjects": [ "11.30.Er", "13.25.Hw", "12.15.Hh" ], "keywords": [ "cp violation", "measurement", "time-dependent cp asymmetries", "determine sin2beta", "babar detector" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 7, "language": "en", "license": "arXiv", "status": "editable", "inspire": 746379 } } }