QCD Sum Rules Calculation of Heavy $\Lambda$ Semileptonic Decay
High Energy Physics - Phenomenology
2008-11-26 v2
Abstract
We set up sum rules for heavy lambda decays in a full QCD calculation which in the heavy quark mass limit incorporates the symmetries of heavy quark effective theory. For the semileptonic decay we obtain a reasonable agreement with experiment. For the semileptonic decay we find at the zero recoil point a violation of the heavy quark symmetry of about 20%.
Cite
@article{arxiv.hep-ph/9712350,
title = {QCD Sum Rules Calculation of Heavy $\Lambda$ Semileptonic Decay},
author = {H. G. Dosch and E. Ferreira and M. Nielsen and R. Rosenfeld},
journal= {arXiv preprint arXiv:hep-ph/9712350},
year = {2008}
}
Comments
Revised version. Title changed. 11 pages (RevTex), 4 PS figures