20.12.10 16:15

Coupled-channel Bethe-Salpeter approach to pion-nucleon scattering

Maxim Mai (Bonn)

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.  [arXiv:1012.2233 [nucl-th]]


(Seminarraum II)

Kategorie: Feldtheorie