Approximate formulas for moderately small eikonal amplitudes
Mathematical Physics
2016-09-21 v1 High Energy Physics - Theory
math.MP
Abstract
The eikonal approximation for moderately small scattering amplitudes is considered. With the purpose of using for their numerical estimations, the formulas are derived which contain no Bessel functions, and, hence, no rapidly oscillating integrands. To obtain these formulas, the improper integrals of the first kind which contain products of the Bessel functions J_0(z) are studied. The expression with four functions J_0(z) is generalized. The expressions for the integrals with the product of five and six Bessel functions J_0(z) are also found. The known formula for the improper integral with two functions J_nu(z) is generalized for non-integer nu.
Cite
@article{arxiv.1511.02099,
title = {Approximate formulas for moderately small eikonal amplitudes},
author = {A. V. Kisselev},
journal= {arXiv preprint arXiv:1511.02099},
year = {2016}
}
Comments
23 pages