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Chiral dynamics of the S11(1535) and S11(1650) resonances revisited

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arxiv 1012.2233 v1 pith:DWOCTU62 submitted 2010-12-10 nucl-th hep-phnucl-ex

Peter C. Bruns , Maxim Mai , U.-G. Mei{ss}ner This is my paper · ORCID
classification nucl-thhep-phnucl-ex
keywords chiraldynamicallygeneratedresonancesanalyzecontactdimensiondiscuss
verification ladder T0 review T1 audit T2 compute T3 formal

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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.

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Cited by 7 Pith papers

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