Effects of vector leptoquarks on ${\Lambda }_b\to {\Lambda }_c\ell {\overline{\nu }}_{\ell }$ decay

K. Azizi, A. T. Olgun, Z. Tavukoglu

Experimental data on $R(D^{(\ast )})$, $R(K^{(\ast )})$ and $R(J/\psi )$, provided by different collaborations, show sizable deviations from the SM predictions. To describe these anomali…