Journal Article

FZJ-2022-05203

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Light baryon resonances from a coupled-channel study including $ K\Sigma$ photoproduction

Rönchen, D. (Corresponding author)FZJ* ; Döring, M. ; Meissner, U.-G.FZJ* ; Shen, C.-W.FZJ*

2022
Springer Heidelberg

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Please use a persistent id in citations: http://hdl.handle.net/2128/32879  doi:10.1140/epja/s10050-022-00852-1

Abstract: The Jülich-Bonn dynamical coupled-channel approach is extended to include $K\Sigma$ photoproduction off the proton. Differential cross section and (double) polarization data for $K^+\Sigma^0$ and $K^0\Sigma^+$ are analysed simultaneously with the pion- and photon-induced production of $\pi N$, $\eta N$, $K\Lambda$, and $K\Sigma$ final states, totaling almost 72,000 data points for center-of-mass energies $W<2.4$~GeV. Based on the fit results the spectrum of $N^*$ and $\Delta$ resonances is extracted in terms of pole positions and residues. We discuss the impact of the $\gamma p\to K\Sigma$ channels in detail and investigate the influence of recent polarization data for $\eta p$ photoproduction.

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Contributing Institute(s):

1. Theorie der Starken Wechselwirkung (IAS-4)
2. Theorie der starken Wechselwirkung (IKP-3)

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)

Appears in the scientific report 2022

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Database coverage:
; ; ; Clarivate Analytics Master Journal List ; Current Contents - Physical, Chemical and Earth Sciences ; DEAL Springer ; Ebsco Academic Search ; Essential Science Indicators ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection

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