Scattering observables and correlation function for $p ~f_1(1285)$ revisited

TL;DR

This paper revisits the scattering observables and correlation function for the $p~f_1(1285)$ system, updating previous results with recent theoretical advances to better interpret upcoming experimental data and understand axial-vector meson states.

Contribution

It incorporates recent theoretical developments in the fixed center approximation and elastic unitarity into the analysis of the $p~f_1(1285)$ system, updating previous results.

Findings

Notable changes in scattering observables and correlation functions.

Updated results are ready for comparison with upcoming ALICE data.

Provides insights into the nature of axial-vector meson states.

Abstract

In view of the recent theoretical developments in the fixed center approximation for the scattering of a particle with a a two-body cluster, implementing elastic unitarity on the standard fixed center formalism, and the imminent availability of ALICE data on the correlation function of the $p~f_1(1285)$ system, we update the results of a previous work for this correlation function and the low-energy scattering observables. The new results show appreciable changes in some observables and should provide valuable input for comparison with the forthcoming experimental data. Such a comparison is expected to yield relevant information on the nature of the axial-vector meson states.