  We present a study on the impact of scalar leptoquarks on the semileptonic
decays of $ \Lambda_b$, $\Sigma_b $ and $\Xi_b $. To this end, we calculate the
differential branching ratio and lepton forward-backward asymmetry defining the
processes $ \Lambda_b \rightarrow \Lambda \ell^+ \ell^-$, $\Sigma_b \rightarrow
\Sigma \ell^+ \ell^-$ and $\Xi_b \rightarrow \Xi \ell^+ \ell^-$, with $\ell$
being $\mu$ or $\tau$, using the form factors calculated via light cone QCD in
full theory. In calculations, the errors of form factors are taken into
account. We compare the results obtained in leptoquark model with those of the
standard model as well as the existing lattice QCD predictions and experimental
data.
