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arXiv · 2209.06132

Evaluation of cross section of elastic scattering for non-relativistic and relativistic particles by means of fundamental scattering formulas

Huai-Yu Wang
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Abstract

In evaluating differential cross section of elastic scattering, different theories were applied to low-momentum and relativistic particles. For low-momentum motion, Lippmann-Schwinger scattering equation was applied, called fundamental formula; while for relativistic particles, a general scattering theory was used which calculates S matrix. In this paper, Lippmann-Schwinger equation is applied uniformly to both low-momentum and relativistic particles. The cross sections are valuated to the first order of Born approximation. One-body time-independent Green's functions for relativistic free particles are given. Compared to the general scattering theory, the fundamental theory has a clearer physical picture and the approximations made are more explicit.

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Huai-Yu Wang. 2022-07-17. Evaluation of cross section of elastic scattering for non-relativistic and relativistic particles by means of fundamental scattering formulas. https://doi.org/10.12988/astp.2022.91866

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