0 10 20 30 40 50 x 0 0.05 0.1 0.15 0.2 0.25 $^{40}$Ca Muonic Atom Wave Functions a b Pure Coulomb case: Nuclear Charge Distribution: 1 2 3 4 5 6 0.1 0.2 0.3 0.4 α = 0.4 s α = 0.4 s α = 0.0 s α = 0.0 s ψ$_{a}$ ψ$_{b}$ 36 FIG. 18: The unnormalized 1 s wave functions for massless quarks, ψ$_{a}$ (upper solid curve) and ψ$_{b}$ (upper dashed curve), for both potentials V$_{v}$ = − α$_{s}$/r and V$_{s}$ of Eq. (9). The lower curves are for α$_{s}$ = 0, and are the same as in Fig. 3. The value of α$_{s}$ used for the upper curves was 0.4. FIG. 17: The unnormalized 1 s muonic atom wave functions for $^{40}$Ca (solid curves) compared with those for a pure point Coulomb potential with charge Z = 40 (dashed curves).