Photoproduction and mixing effects of scalar a0 and f0 mesons

TL;DR

This paper investigates the photoproduction of scalar a0(980) and f0(980) mesons near threshold energies, analyzing their production mechanisms, cross sections, and the mixing effects in various decay channels.

Contribution

It provides new estimates of production cross sections and examines the role of a0-f0 mixing in meson mass spectra near threshold energies.

Findings

Production cross sections vary across models.

a0-f0 mixing influences invariant mass spectra.

Results enhance understanding of scalar meson photoproduction.

Abstract

The photoproduction processes gp-->a0(980)p and gp-->f0(980)p at energies close to threshold are considered. These reactions are studied in the \pi\pi p, \pi\eta p, and K-barK p channels. Production cross sections are estimated in different models. The role of the a0^0-f0 mixing is examined in the invariant \pi\pi-,\pi\eta-, and K-barK-mass spectra.