Pion Compton scattering and bremsstrahlung
G\"oran F\"aldt, Ulla Tengblad
TL;DR
This paper explores how pion-nucleus bremsstrahlung can be used to measure pion polarizability functions, providing numerical predictions for cross sections and assessing experimental prospects within a meson-exchange model.
Contribution
It offers the first detailed numerical predictions for pion-nucleus bremsstrahlung cross sections in the Coulomb region relevant for measuring pion polarizabilities.
Findings
Numerical cross section estimates for small-angle pion bremsstrahlung.
Assessment of experimental feasibility for energies up to 1 GeV.
Use of a meson-exchange model for pion-Compton amplitude.
Abstract
The pion-polarizability functions are structure functions of pion-Compton scattering. They can be assessed in high-energy pion-nucleus bremsstrahlung reactions, . We present numerical expectations for pion-nucleus bremsstrahlung cross sections in the Coulomb region, i.e. the small-angle region where the nuclear scattering is dominated by the Coulomb interaction. We investigate the prospects of measuring the polarizability functions for pion-Compton c.m. energies from threshold up to 1 GeV. A meson-exchange model is used for the pion-Compton amplitude.
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