Semileptonic decay of $B_c$ meson into $c\bar c$ states in a QCD potential model

Understand

The slope and curvature of Isgur Wise function for $B_{c}$ meson is computed in a QCD potential model in two different approaches of choosing the perturbative term of the Cornell potential.

• Based on heavy quark effective theory the exclusive semileptonic decay rates of $B_c$ meson into the $c\bar c\ (\eta_c,J/\psi)$ states are exploited.
• Spin symmetry breaking effects are ignored upto a particular point and the form factors are connected with Isgur-Wise function for other kinematic point since the recoil momentum of $c\bar c$ from $B_{c}$ is small due to its heavy mass.