DN interaction from the Juelich meson-exchange model

TL;DR

This paper models the $DN$ interaction using a meson-exchange approach inspired by the Juelich model, predicting the $ ext{Lambda}_c$(2595) resonance as a $DN$ quasi-bound state and providing scattering data.

Contribution

It introduces a $DN$ interaction model based on SU(4) symmetry and dynamically generates the $ ext{Lambda}_c$(2595) resonance, extending the meson-exchange framework.

Findings

Predicts $DN$ scattering lengths and cross sections.

Dynamically generates the $ ext{Lambda}_c$(2595) resonance.

Highlights the role of the $\pi ext{Sigma}_c$ threshold.

Abstract

The $DN$ interaction is studied in close analogy to the meson-exchange $\bar KN$ potential of the Juelich group using SU(4) symmetry constraints. The model generates the $\Lambda_c$(2595) resonance dynamically as a $DN$ quasi-bound state. Results for $DN$ scattering lengths and cross sections are presented and compared with predictions based on the Weinberg-Tomozawa term. Some features of the $\Lambda_c$(2595) resonance are also discussed emphasizing the role of the near-by $\pi\Sigma_c$ threshold.