Study of the partial wave structure of $\pi^0\eta$ photoproduction on protons

TL;DR

This paper analyzes the partial wave structure of gamma p --> pi0 eta p photoproduction on protons using angular distribution data from Mainz MAMI, providing insights into reaction amplitudes up to 1.9 GeV.

Contribution

It introduces a detailed partial wave analysis of the gamma p --> pi0 eta p reaction based on experimental angular distributions, comparing results with theoretical models.

Findings

Extraction of partial wave moments from angular distributions.

Comparison of experimental data with model predictions.

Insights into reaction mechanisms up to 1.9 GeV.

Abstract

Analysis of the partial wave structure of gamma p --> pi0 eta p reaction is presented in the energy region from threshold up to the total center of mass energy W = 1.9 GeV. Angular distributions measured with the Crystal Ball/TAPS hermetic detector system at the Mainz Microtron MAMI are expanded in terms of spherical harmonics. The relation of the extracted moments to the partial wave structure of the reaction amplitude is discussed and compared with predictions from model calculations.