Analytical On-shell Calculation of Higher Order Scattering: Massive Particles
High Energy Physics - Phenomenology
2016-10-26 v1 General Relativity and Quantum Cosmology
High Energy Physics - Theory
Nuclear Theory
Abstract
We demonstrate that the use of on-shell methods, involving calculation of the discontinuity across the t-channel cut associated with the exchange of a pair of massless particles, can be used to evaluate loop contributions to both the electromagnetic and gravitational scattering of massive systems. In the gravitational case, the use of factorization permits a straightforward and algebraic calculation of higher order scattering results, which were obtained previously by much more arduous Feynman diagram techniques.
Cite
@article{arxiv.1610.07957,
title = {Analytical On-shell Calculation of Higher Order Scattering: Massive Particles},
author = {Barry R. Holstein},
journal= {arXiv preprint arXiv:1610.07957},
year = {2016}
}
Comments
36 pp., 5 figures