Measurements of D and Ds decay constants at CLEO
High Energy Physics - Experiment
2008-10-15 v1
Abstract
Using CLEO data collected at 3370 MeV and 4170 MeV, we determine fD = (205.8 +- 8.5 +- 2.5) MeV and an interim preliminary value of fDs = (267.9 +- 8.2 +- 3.9) MeV, where both results are radiatively corrected. They agree with the recent most precise unquenched Lattice-QCD calculation for the D+, but do not for the Ds. Several consequences are discussed.
Keywords
Cite
@article{arxiv.0810.2328,
title = {Measurements of D and Ds decay constants at CLEO},
author = {Liming Zhang},
journal= {arXiv preprint arXiv:0810.2328},
year = {2008}
}
Comments
Parallel talk at ICHEP'08, Philadelphia, USA, July 29 - August 5, 2008. 5 pages