An analytic solution of the N-dimensional radial Schrödinger equation with the mixture of vector and scalar potentials via the Laplace transformation method (LTM) is studied. The present potential is extended to include the spin hyperfine, spin-orbit and tensor interactions. The energy eigenvalues and the corresponding eigenfunctions have been determined in the N-dimensional space. The present results are employed to study the different properties of the heavy-light mesons. The masses of the scalar, vector, pseudoscalar and pseudovector of B, B s , D and D s mesons have been calculated in the three dimensional space. The effect of the dimensional number space is studied on the masses of the heavy-light mesons. We find that the meson mass increases with increasing dimensional space. The decay constants of the pseudoscalar and vector mesons have been computed. In addition, the leptonic decay widths and branching ratio for the B + , D + and D s + mesons have been studied. Therefore, the present method with the present potential gives good results which are in good agreement with experimental data and are improved in comparison with recently theoretical works.
3(NU) method. Abou-Salem [57] has computed the masses and leptonic decay widths of , , , , and cc bb cs bs bu cb numerically using Jacobi method. The strong decays, spectroscopy and radiative transition of heavy-light hadrons have been computed with quark model predictions [58]. The decay constant of heavy-light mesons have been calculated using the field correlation method [59]. The Quasipotential approach the spectroscopy of heavy-light mesons have been investigated with the QCD motivated relativist quark model [60]. The spectroscopy and Regge trajectories of heavy-light mesons have been obtained with Quasi-potential approach [61]. The decay constants of heavy-light vector mesons [62] and heavylight pseudoscalar mesons [63] have been calculated with QCD sum rules. A comparative study has been presented of the mass spectrum and decay properties for the D-meson with the quark-antiquark potential using hydrogeometric and Gaussian wave function [64]. In framework of Dirac formalism the mass spectra of