Leptonic and Semileptonic Charm Decays from CLEO-c

Abstract

I describe CLEO-c purely leptonic decay results leading to fD+=(222.6 +/- 16.7^{+2.8}_{-3.4}) MeV, fDs+=(280.1 +/- 11.6 +/- 6.0) MeV, and fDs+/fD+=1.26 +/- 0.11 +/-0.03. Form-factor measurements in Cabibbo favored and suppressed pseudoscalar decays are presented. Some comparisons are made with theoretical predictions.

Presented at 4th Int. Workshop on the Unitary Triangle, CKM 2006, Nagoya, Japan, Dec. 2006; 5 pages, 9 figures