Studying the production mechanisms of light meson resonances in two-pion photoproduction: a Regge approach

Abstract

A calculation of the angular moments of two-pion photoproduction is presented. The underlying theoretical model encodes the prominent $\ddot{I}(770)$ resonance and the expected leading background contribution coming from the Deck mechanism. The model contains a number of free parameters which are fit to experimental data. A good description of the angular moments is obtained.

5 pages, 3 figures. Prepared as proceedings contribution for the 20th International Conference on Hadron Spectroscopy and Structure (HADRON 2023), Genova, Italy, 5-9/6/2023