Measurement of the wrong-sign decays D0 -> K+ pi- pi0 and D0 -> K+ pi- pi+ pi-, and search for CP violation
| dc.creator | The Belle Collaboration | |
| dc.creator | Tian, X. C. | |
| dc.date | 2005-07-16 | |
| dc.date | 2005-10-11 | |
| dc.date.accessioned | 2026-07-07T11:58:07Z | |
| dc.date.available | 2026-07-07T11:58:07Z | |
| dc.description | Using 281 fb^-1 of data from the Belle experiment recorded at or near the Upsilon(4S) resonance, we have measured the rates of the ``wrong-sign'' decays D0 -> K+ pi- pi0 and D0 -> K+ pi- pi+ pi- relative to those of the Cabibbo-favored decays D0 -> K- pi+ pi0 and D0 -> K- pi+ pi+ pi-. These wrong-sign decays proceed via a doubly Cabibbo-suppressed amplitude or via D0-D0bar mixing; the latter has not yet been observed. We obtain R_WS(Kpipi0)=[0.229 +/-0.017(stat.) +0.013-0.009(sys.)]% and R_WS(K3pi)=[0.320 +/-0.019(stat.) +0.018-0.013(sys.)]%. The CP asymmetries are measured to be -0.006 +/- 0.053 and -0.018 +/- 0.044 for the K+ pi- pi0 and K+ pi- pi+ pi- final states, respectively. | |
| dc.description | 10 pages, 3 figures, submitted to PRL, Lepton-Photon 2005 Conference in Uppsala, Sweden and HEP2005 Europhysics Conference in Lisboa, Portugal | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0507071 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0507071 | |
| dc.identifier | Phys.Rev.Lett.95:231801,2005 | |
| dc.identifier | doi:10.1103/PhysRevLett.95.231801 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206121 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the wrong-sign decays D0 -> K+ pi- pi0 and D0 -> K+ pi- pi+ pi-, and search for CP violation | |
| dc.type | text |