Meson-meson interactions and Regge propagators

TL;DR

This paper introduces a new formalism for meson-meson interactions using Regge propagators, connecting it with unitarized chiral amplitudes and proposing experimental tests for Regge spectra.

Contribution

It reformulates the loop expansion in meson-meson scattering as s-channel exchange of propagator families, broadening application scope.

Findings

Formalism links meson interactions with Regge propagators

Connection established with unitarized chiral amplitudes

Proposes experimental observation of alternative Regge spectra

Abstract

By a reformulation of the loop expansion in the Resonance-Spectrum-Expansion amplitude for meson-meson scattering, in terms of s-channel exchange of families of propagator modes, we obtain a formalism which allows for a wider range of applications. The connection with the unitarized amplitudes employed in some chiral theories is discussed. We also define an alternative for the Regge spectra and indicate how this may be observed in experiment.