Conference Presentation (Plenary/Keynote)

FZJ-2023-05081

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png The light baryon resonance spectrum in a coupled-channel approach – recent results of the Jülich-Bonn model

Rönchen, D. (Corresponding author)FZJ*

2023

Abstract: In order to connect predictions for the baryon spectrum in the non-perturbative energy regime from quark models or lattice calculations to experimental data, coupled-channel frameworks are especially suited. In those approaches a simultaneous partial-wave analysis of multiple reactions with different initial and final states is performed.I will present recent results from the Juelich-Bonn dynamical coupled-channel approach, where the spectrum of nucleon and Delta resonances is extracted based on a combined study of the pion- and photon-induced production of $\pi N$, $\eta N$, $K\Lambda$ and $K\Sigma$ final states. The amplitudes of the Jülich-Bonn model also enter the study of electroproduction reactions as constraints at $Q^2=0$.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)

Research Program(s):

1. 5111 - Domain-Specific Simulation & Data Life Cycle Labs (SDLs) and Research Groups (POF4-511) (POF4-511)
2. DFG project 196253076 - TRR 110: Symmetrien und Strukturbildung in der Quantenchromodynamik (196253076) (196253076)
3. NRW-FAIR (NW21-024-A) (NW21-024-A)

Appears in the scientific report 2023

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