  We present new results on charm hadron decays from the CLEO II experiment.
The D*+ width is measured for the first time, Gamma(D*+) = 96 +- 4 +- 22 keV.
The semileptonic decay branching fractions are determined to be B(D+ --> Kbar*0
e+ nu_e) = (6.7 +- 0.4 +- 0.5 +- 0.4)% and B(D+ --> Kbar*0 mu+ nu_mu) = (6.5 +-
0.9 +- 0.5 +- 0.4)%. We observe evidence for Omega_c --> Omega- e+ nu_e and
measure the product of the branching fraction and cross section, B(Omega_c -->
Omega- e+ nu_e) x sigma(e+e- --> Omega_cX) = 42.2 +- 14.1 +- 11.9 fb. Within
the framework of Heavy Quark Effective Theory, we measure in the decay
Lambda+_c --> Lambda e+ nu_e the form factor ratio, R = f_2/f_1 = -0.31 +- 0.06
+- 0.06. This provides strong evidence that the form factor f_2 describing spin
interactionof the s quark is non-zero. The Xi+_c lifetime is measured to be 503
+- 47 +- 18 fs. The results on branching fractions, cross section, and form
factor ratio are preliminary.

High Energy Physics - Experiment