{ "id": "0905.4185", "version": "v1", "published": "2009-05-26T12:21:40.000Z", "updated": "2009-05-26T12:21:40.000Z", "title": "Measurement of $y_{CP}$ in $D^0$ meson decays to the $K_S^0K^+K^-$ final state", "authors": [ "The Belle Collaboration" ], "comment": "18 pages, 6 figures, 4 tables", "journal": "Phys.Rev.D80:052006,2009", "doi": "10.1103/PhysRevD.80.052006", "categories": [ "hep-ex" ], "abstract": "We present a measurement of the $D^0$-$\\overline{D}{}^0$ mixing parameter $y_{CP}$ using a flavor-untagged sample of $D^0\\to K_S^0K^+K^-$ decays. The measurement is based on a 673 fb$^{-1}$ data sample recorded with the Belle detector at the KEKB asymmetric-energy $e^+ e^-$ collider. Using a method based on measuring the mean decay time for different $K^+K^-$ invariant mass intervals, we find $y_{CP} = (+0.11\\pm 0.61 ({\\rm stat.})\\pm 0.52 (\\rm syst.))%$.", "revisions": [ { "version": "v1", "updated": "2009-05-26T12:21:40.000Z" } ], "analyses": { "subjects": [ "13.25.Ft", "12.15.Ff" ], "keywords": [ "final state", "meson decays", "measurement", "mean decay time", "invariant mass intervals" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review D", "year": 2009, "month": "Sep", "volume": 80, "number": 5, "pages": "052006" }, "note": { "typesetting": "TeX", "pages": 18, "language": "en", "license": "arXiv", "status": "editable", "inspire": 821323, "adsabs": "2009PhRvD..80e2006Z" } } }