Spatial and Transverse structure of Heavy B- and D-mesons

We have investigated the unpolarized valence quark generalized parton distribution functions (GPDs) and parton distribution functions (PDFs) for heavy spin-$0$, B- and D-mesons in the light-front quark model (LFQM). PDFs have been extracted from unpolarized f₁(x,k²⊥) transverse momentum-dependent parton distribution functions (TMDs). We have solved the quark-quark correlation function to have an unpolarized H(x,ζ,t) GPD. The unpolarized GPDs at zero skewness (ζ=0) lead to describing the electromagnetic form factors (EMFFs) (FM(t)) and gravitational form factors (GFFs)(AM(t)) of the mesons.