Abstract
${\ensuremath{\Omega}}_{b}\ensuremath{\rightarrow}{\ensuremath{\Omega}}_{c}^{(*)}$ semileptonic decays are studied in details. Relevant helicity amplitudes are written down. Both unpolarized and polarized ${\ensuremath{\Omega}}_{b}$ cases are considered. Decay angular distributions, asymmetry parameters and semileptonic decay rates are calculated, with numerical results using leading order results of the large ${N}_{c}$ heavy quark effective theory.
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