Paper Title
Coefficient of Absorption Cross Section and Sinc Approximation in Black Holes

Abstract
In this paper we have evaluated absorption cross section of Black holes using some standard approximations like Regge pole technique, Eikonal approximation and Sinc approximation. We have found oscillatory pattern of the absorption cross section connect with the Sinc(x) approximation. Regge pole technique is used for calculation of complex angular momentum. We have also analyzed graphical relations between absorption cross section and mass of black holes. Our results give more information about the black hole’s cross section at high energy limits. This information is very useful to understand black holes spacetime. Keywords - Sinc Approximation, Absorption cross section, Regge pole Technique, Black hole shadow, Black hole’spacetime, Eikonal limit.