Meson-baryon threshold effects in the light-quark baryon spectrum

TL;DR

This paper suggests that specific S wave meson-baryon channels are crucial for aligning quark model predictions with experimental baryon spectra, proposing a method to improve resonance identification.

Contribution

It introduces a new approach to incorporate meson-baryon threshold effects into baryon spectrum analysis, enhancing resonance extraction from data.

Findings

Selected S wave channels influence baryon mass predictions

A new prescription improves resonance identification

Potential to reconcile quark models with experimental data

Abstract

We argue that selected $S$ wave meson-baryon channels may play a key role to match poor baryon mass predictions from quark models with data. The identification of these channels with effective inelastic channels in data analysis allows to derive a prescription which could improve the extraction and identification of baryon resonances.