Subleading Corrections to Semileptonic Lambda_c Decays

Abstract

The semileptonic decay ${\Lambda }_c\to \Lambda \ell \nu$ 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 ${\alpha }_{{\Lambda }_c}\le -0.95$.

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