ETHNP (Effective Theories in Hadron and Nuclear Physics)

Sesión

4 sept. 2026 14:00

1001-Primera-1-1-1 - Paterna. Seminario (Universe)

Lista de contribución Cronograma

9. Effective range expansion with left-hand cut

Prof. Feng-Kun Guo (ITP, CAS)

I will talk about a generalization of effctive range expansion with a left-hand cut due to the t- or u-channel exchange of a particle with a small finit mass. The generalization is constructed using the N/D method of dispersion theory and has a Pade-like form. The applicability will be shown by extracting the NNpi coupling from NN scattering phase shifts using this formalism.

5. Three-body effects in excited hadrons

Michael Doering (George Washington University)

Many excited mesons decay to three hadrons. Some of them are not even resonances but kinematic enhancements from three particles being on-shell in a triangle configuration. Other systems are dynamically generated from three-body interactions leading to resonance poles. Examples for these phenomena from phenomenology and lattice QCD is presented involving the $K(1460)$, $\pi(1300)$,...