Study of the Cabibbo-suppressed decay modes D0-->Pi-pi+ and D0-->K-K+
High Energy Physics - Experiment
2012-08-27 v2
Abstract
Using data from the FOCUS (E831) experiment at Fermilab, we present a new measurement for the branching ratios of the Cabibbo-suppressed decay modes D0-->Pi-Pi+ and D0-->K-K+. We measured: Gamma(D0-->K-K+)/Gamma(D0-->Pi-Pi+) = 2.81 +/- 0.10(stat) +/- 0.06(syst), Gamma(D0-->K-K+)/Gamma(D0-->K-Pi+) = 0.0993 +/- 0.0014(stat) +/- 0.0014(syst), and Gamma(D0-->Pi-Pi+)/Gamma(D0-->K-Pi+) = 0.0353 +/- 0.0012 (stat) +/- 0.0006(syst). These values have been combined with other experimental data to extract the ratios of isospin amplitudes and the phase shifts for the D-->KK and D-->PiPi decay channels.
Cite
@article{arxiv.hep-ex/0212058,
title = {Study of the Cabibbo-suppressed decay modes D0-->Pi-pi+ and D0-->K-K+},
author = {FOCUS Collaboration},
journal= {arXiv preprint arXiv:hep-ex/0212058},
year = {2012}
}
Comments
12 pages, 1 Figure, accepted for publication in Phys.Lett.B