Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2006-07-26
Physics
High Energy Physics
High Energy Physics - Experiment
15 pages, 10 postscript figues, submitted to ICHEP2006
Scientific paper
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.
"The BABAR Collaboration
Aubert B.
No associations
LandOfFree
Search for b--> u transitions in B- -> [K+pi-pi0]_D K- does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Search for b--> u transitions in B- -> [K+pi-pi0]_D K-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for b--> u transitions in B- -> [K+pi-pi0]_D K- will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-477619