Hadron Spectroscopy with Strangeness

Session

Session 4

4 Apr 2024, 09:30

Main building, Room 253 (University of Glasgow)

16. Constraining the $\pi \mathrm{\Sigma }-\overline{K}N$ models with the $\pi \mathrm{\Sigma }$ photoproduction data

Ales Cieply (Nuclear Physics Institute, Rez, Czechia)

04/04/2024, 09:30

The measurements of $\pi \mathrm{\Sigma }$ mass distributions in the $\gamma p\to K^{+}\pi \mathrm{\Sigma }$ photoproduction reaction [1] probe the energy region of the $\mathrm{\Lambda }(1405)$ resonance, just below the $\overline{K}N$ threshold, and provide new challenges for the theoretical models of $\pi \mathrm{\Sigma }-\overline{K}N$ coupled channels interactions. Adopting the photoproduction model presented in [2, 3] and the...

23. New insights into the nature of the Λ(1380) and Λ(1405) resonances away from the SU(3) limit

Dr Yuki Kamiya (Bonn University)

04/04/2024, 10:00

In the KbarN-piSigma coupled-channel system, two resonance states of the Lambda(1405) and Lambda(1380) states are considered to appear in the same physical Riemann sheets. To investigate the origin of these states, the detailed knowledge on the interaction is required. In this talk, we discuss the pole positions at the unphysical quark masses which can be accessed in the lattice QCD...