Absolute branching fractions of Cabibbo-suppressedD→KK¯decays

G. Bonvicini, D. Cinabro, M. Dubrovin, A. Lincoln, J. Rademacker, D. M. Asner, K. W. Edwards, P. Naik, J. Reed, R. A. Briere, T. Ferguson, G. Tatishvili (+97 others)
2008 Physical Review D  
Using 281/pb of data collected with the CLEO-c detector at the psi(3770) resonance, we have studied Cabibbo-suppressed decays of D mesons to final states with two kaons. We present results for the absolute branching fractions of the modes D^0 --> K^+ K^-, D^0 --> K^0_S K^0_S, and D^+ --> K^+ K^0_S. We measure B(D^0 --> K^+ K^-) = (4.08 +- 0.08 +- 0.09) x 10^-3, B(D^0 --> K^0_S K^0_S) = (1.46 +- 0.32 +- 0.09) x 10^-4, and B(D^+ --> K^+ K^0_S) = (3.14 +- 0.09 +- 0.08) x 10^-3. We also determine
more » ... We also determine the ratio B(D^0 --> K^+ K^-)/B(D^0 --> pi^+ pi^-) = 2.89 +- 0.05 +- 0.06. For each measurement, the first uncertainty is statistical and the second uncertainty is systematic.
doi:10.1103/physrevd.77.091106 fatcat:gkaee647xvh4lfv4a3dn65q25q