Search for b--> u transitions in B- -> [K+pi-pi0]_D K-
| dc.creator | The BABAR Collaboration | |
| dc.creator | Aubert, B. | |
| dc.date | 2006-07-26 | |
| dc.date.accessioned | 2026-07-07T07:16:35Z | |
| dc.date.available | 2026-07-07T07:16:35Z | |
| dc.description | We search for decays of a B meson into a neutral D meson and a kaon, with the D meson decaying into K+pi-pi0. This final state can be reached through the b --> c transition B- -> D0K- followed by the doubly Cabibbo-suppressed D0 --> K+pi-pi0, or the b --> u transition B- --> D0bar K- followed by the Cabibbo-favored D0bar --> K+ pi-pi0. The interference of these two amplitudes is sensitive to the angle gamma of the unitarity triangle. We present preliminary results based on 226 10^{6} e+e- --> Y(4s) --> BBbar events collected with the BABAR detector at SLAC. We find no significant evidence for these decays and we set a limit R_ADS =(BR(B- -->[K+pi-pi0]_D K-)+ BR(B- --> [K-pi+pi0]_D K+))/(BR(B- -->[K-pi+pi0]_D K-)+ BR(B- --> [K+pi-pi0]_D K+))<0.039 at 95% confidence level, which we translate with a Bayesian approach into r_B = |A(B- --> D0bar K-)|/|A(B- --> D0bar K-)| < 0.185 at 95% confidence level. | |
| dc.description | 15 pages, 10 postscript figues, submitted to ICHEP2006 | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0607065 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0607065 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/113639 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Search for b--> u transitions in B- -> [K+pi-pi0]_D K- | |
| dc.type | text |