Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2004-08-24
Phys.Rev.Lett.94:071801,2005
Physics
High Energy Physics
High Energy Physics - Experiment
9 pages, 3 figures, 1 table, originally submitted to ICHEP2004 (Beijing, China); final version submitted to Physical Review Le
Scientific paper
10.1103/PhysRevLett.94.071801
We have searched for mixing in the D0-D0bar system by measuring the decay-time distribution of D0->K+pi- decays. The analysis uses 90 fb^{-1} of data collected by the Belle detector at the KEKB e+e- collider. We fit the decay-time distribution for the mixing parameters x' and y' and also for the parameter R_D, which is the ratio of the rate for the doubly-Cabibbo-suppressed decay D0->K+pi- to that for the Cabibbo-favored decay D0->K-pi+. We do these fits both assuming CP conservation and allowing for CP violation. We use a frequentist method to obtain a 95% C.L. region in the x'^2 - y' plane. Assuming no mixing, we measure R_D = (0.381 \pm 0.017 +0.008 -0.016) %.
for the Belle Collaboration
Li Jiying
Schwartz Jon A.
Zhang Zhong-Ping
No associations
LandOfFree
Search for D^0-D^0bar mixing in D^0 -> K+pi- decays and measurement of the doubly-Cabibbo-suppressed decay rate 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 D^0-D^0bar mixing in D^0 -> K+pi- decays and measurement of the doubly-Cabibbo-suppressed decay rate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Search for D^0-D^0bar mixing in D^0 -> K+pi- decays and measurement of the doubly-Cabibbo-suppressed decay rate will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-249271