Theoretical Aspects of Hadron Spectroscopy and Phenomenology

Session

15 Dec 2020, 13:30

Conveners

Session 1

• Laura Tolos (ICE)

Contribution list Timetable

38. Precision calculations in non- perturbative QCD (I): Effective Field Theories (EFT’s), analyticity and dispersion relations. Development and application of EFTs

Prof. Christoph Hanhart (FZ Jülich)

15/12/2020, 13:30

39. Meson Spectroscopy analysis of new and exotic states: Search for and study of light exotic mesons, charmonium and strangeonium

Vincent Mathieu (Complutense University of Madrid)

15/12/2020, 13:55

29. Dispersive study of $\pi K$ and $\pi\pi\rightarrow K\bar K$ scattering: threshold parameters and kappa/K^*(700) resonance determination

Jose R. Pelaez (Universidad Complutense de Madrid)

15/12/2020, 14:20

We report on our recently finished dispersive study of pion-kaon and pion-pion to kaon-antikaon scattering data. We have shown that naive fits to data fail to satisfy the dispersive representation, sometimes severely. We have then obtained a fairly simple Constrained Fit to Data set of partial waves that simultaneously describes the data and satisfy Forward, fixed-t and hyperbolic dispersion...

28. Two- and three-particle scattering amplitudes from lattice QCD

Fernando Romero-López (IFIC, UV-CSIC)

15/12/2020, 14:45

The extraction of scattering amplitudes from lattice QCD simulations is reaching a mature stage. In this talk, I will review the well-established two-particle finite-volume scattering formalism, including some of our recent results for isospin-2 pion scattering at the physical point. I will also discuss the status of the formalism for the computation of three-particle scattering amplitudes...

40. Revisiting the a_0 resonances in photon-photon scattering

Prof. Mousallam

15/12/2020, 15:10