Measurement of the branching fractions and CP-asymmetry of B^- -> D^0_(CP) K^- decays with the BaBar detector
| dc.creator | Aubert, B. | |
| dc.creator | Collaboration, BABAR | |
| dc.date | 2003-11-13 | |
| dc.date.accessioned | 2026-07-07T12:02:09Z | |
| dc.date.available | 2026-07-07T12:02:09Z | |
| dc.description | We present a study of B- -> D^0_CP K^- decays, where D^0_CP is reconstructed in CP-even channels, based on a sample of 88.8 million Upsilon(4S)->BBbar decays collected with the BaBar detector at the PEP-II e^+e^- storage ring. We measure the ratio of Cabibbo-suppressed to Cabibbo-favored branching fractions Br(B- -> D^0_CP K^-)/Br(B- -> D^0_CP pi^-)= (8.8 +/- 1.6(stat) +/- 0.5(syst))\times 10^{-2} and the CP asymmetry A_CP= 0.07 +/- 0.17(stat) +/- 0.06(syst). We also measure Br(B- ->D0K-)/Br(B- ->D0pi-)=(8.31 +/- 0.35(stat) +/- 0.20(syst))\times 10^{-2} using a sample of 61.0 million BBbar pairs. | |
| dc.description | 7 pages, 1 figure; submitted to Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0311032 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0311032 | |
| dc.identifier | Phys.Rev.Lett.92:202002,2004 | |
| dc.identifier | doi:10.1103/PhysRevLett.92.202002 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/207339 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurement of the branching fractions and CP-asymmetry of B^- -> D^0_(CP) K^- decays with the BaBar detector | |
| dc.type | text |