Chiral dynamics of the S11(1535) and S11(1650) resonances revisited
Peter C. Bruns, Maxim Mai, U.-G. Mei{\ss}ner
TL;DR
This paper revisits the chiral dynamics of the S11(1535) and S11(1650) resonances, demonstrating they are dynamically generated through unitarized chiral effective Lagrangian analysis, with implications for understanding baryon resonance structures.
Contribution
It provides a detailed analysis showing that the S11(1535) and S11(1650) resonances are dynamically generated within a unitarized chiral framework, clarifying their nature.
Findings
S11(1535) and S11(1650) are dynamically generated resonances.
S31(1620) is not dynamically generated.
The structure of these resonances is discussed.
Abstract
We analyze s-wave pion-nucleon scattering in a unitarized chiral effective Lagrangian including all dimension two contact terms. We find that both the S11(1535) and the S11(1650) are dynamically generated, but the S31(1620) is not. We further discuss the structure of these dynamically generated resonances.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.