TPEcalc: a program for calculation of two-photon exchange amplitudes
Dmitry Borisyuk, Alexander Kobushkin
TL;DR
TPEcalc is a C++ command-line tool that calculates two-photon exchange amplitudes in elastic electron-hadron scattering for various targets, aiding in precise theoretical predictions.
Contribution
It introduces TPEcalc, a novel software that automates TPE amplitude calculations using the dispersion method for multiple hadron targets.
Findings
Supports proton, neutron, and pion targets.
Calculates TPE amplitudes based on user-supplied form factors.
Facilitates improved theoretical analysis of electron-hadron scattering.
Abstract
TPEcalc is a C++ program for calculation of two-photon exchange (TPE) amplitudes in elastic electron-hadron scattering, based on the dispersion method. It is a command-line tool which accepts kinematical parameters (Q^2 and epsilon) as input and returns TPE amplitudes. It can do calculations for proton, neutron and pion targets. Any spin 1/2+ or spin 0- target is supported, if the user supplies all necessary form factor parameterizations. This paper describes how to use TPEcalc and outlines underlying theory. The program source code can be downloaded from http://tpe.bitp.kiev.ua/
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Taxonomy
TopicsLanthanide and Transition Metal Complexes · Atomic and Subatomic Physics Research · Quantum Mechanics and Applications