Abstract
We have used mesonic and baryonic wave functions in the presence of the modified quantum isotonic oscillator interaction to compute the parameters of the Isgur–Wise function. Thereby we have presented branching ratios for mesons B and \(B_{s}\), decay widths of baryons \(\Lambda _b \), \(\Omega _b\), \({\vert }V_{cb}{\vert }\) for B and \(B_{s}\) semileptonic decays by using of differential decay width and Isgur–Wise functions. The results are in good agreement with experimental data and the other theoretical values.
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