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arXiv · hep-ph/9712350

QCD Sum Rules Calculation of Heavy $Λ$ Semileptonic Decay

H. G. Dosch·E. Ferreira·M. Nielsen·R. Rosenfeld
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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 $\La_c$ decay we obtain a reasonable agreement with experiment. For the $\La_b$ semileptonic decay we find at the zero recoil point a violation of the heavy quark symmetry of about 20%.

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H. G. Dosch, E. Ferreira, M. Nielsen, R. Rosenfeld. 1998-06-29. QCD Sum Rules Calculation of Heavy $Λ$ Semileptonic Decay. https://doi.org/10.1016/s0370-2693(98)00566-8

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