  This paper presents a qualitative explanation for the hollowness effect based
on the inelastic overlap function, claiming this result is a consequence of
fundamental thermodynamic processes. Using the Tsallis entropy, one identifies
the entropic index $w$ with the ratio of the collision energy to critical one
in the total cross-section. The integrated probability density function is
replaced by the inelastic overlap function, which represents the probability of
occurrence of an inelastic event depending on both the collision energy and
impact parameter. The Coulomb potential, as well as the confinement potential,
are used as naive approaches to describe the (internal) energy of the colliding
hadrons. The Coulomb potential in the impact parameter picture is not able to
furnish any reliable physical result near the forward direction. However, the
confinement potential in the impact parameter space results in the hollowness
effect shown by the inelastic overlap function near the forward direction.
