Going full circle: QCD to EFT to dynamically generated resonances and back to (lattice) QCD

Maxim Mai (University of Bern)

The study of strongly interacting particles (hadrons) is a field that remains riddled with many unanswered questions. One of the most fundamental ones is the form of the excited states spectrum. Additionally, the reasons behind the varying complexities and the nature of some individual states also remain elusive.

To address these questions several powerful tools have been developed, including Lattice QCD, Chiral Perturbation theory, and S-Matrix techniques. In my talk I will review recent progress in combining these techniques. Specifically, I will focus on the bridge between Lattice QCD based and traditional hadron spectroscopy through models based on Effective Field Theories and S-Matrix theory. The showcased examples will range from the elusive $\Lambda(1405)$ [10.1140/epjs/s11734-021-00144-7] to the recently re-discovered $\omega(782)$ [10.1103/PhysRevLett.133.211906].

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The colloquium will be streamed but not recorded.
Zoom link: https://uni-frankfurt.zoom.us/j/2848286010?pwd=VmtCY1RCc1hpVStKd0RibFBpc1IzZz09
Meeting ID: 284 828 6010
Password: 068695