DN interaction from the Juelich meson-exchange model

Abstract

The $DN$ interaction is studied in close analogy to the meson-exchange $\bar{K}N$ 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.

Comments: 3 pages, 3 figures, contribution to the proceedings of the 19th Particles and Nuclei International Conference (PANIC11), Cambridge, Massachusetts, July 24th-29th, 2011