Subleading Corrections to Semileptonic Lambda_c Decays

Abstract

The semileptonic decay $\hat{I}{›}_c\to \hat{I}›\ell \hat{I}½$ is considered in the framework of heavy quark effective theory beyond the leading order in the $1/m_c$ expansion. According to our estimate the polarization variable will receive only very small corrections such that $\hat{I}{\pm }_{\hat{I}{›}_c}\le -0.95$.

13 pages, no figures, LaTeX, CERN-TH.7086/93, IP-ASTP-30-93