Measurements of branching fractions and CP asymmetries in B-->D0CPK-.

Primary authors: Paola Squillacioti, Giovanni Punzi, Maria Agnese Ciocci.

The partial widths of B-->D0(CP)K- decays (D0->K-π+ and D0CP+->K+K-, π+π-) provide a theoretically-clean way of measuring the CKM angle gamma through the so called "GLW method".

This webpage summarizes the results for the measurement of

R = BR(B-->D0K-) / BR(B-->D0π-) RCP+ = R+ / R ACP+ = (BR(B-->D0CP+K-) - BR(B+->D0CP+K+)) / (BR(B-->D0CP+K-) + BR(B+->D0CP+K+))

where R+ = (BR(B-->D0CP+K-) + BR(B+->D0CP+K+)) / (BR(B-->D0CP+π-) + BR(B+->D0CP+π+))
We use 1 fb-1 of data. The results have been blessed at the CDF B-Physics meeting on Thursday  October 18, 2007 and revised on July 24, 2008.


Results

R = 0.0745 ± 0.0043 (stat) ± 0.0045 (sys)
RCP+ = 1.30 ± 0.24 (stat) ± 0.12 (sys)
ACP+ = 0.39 ± 0.17 (stat) ± 0.04 (sys)


A complete description of the analysis is available here: note-9109.


Figures

Below the .eps and .gif versions of all figures available for download.