26-31 July 2021
Mexico City
Mexico/General timezone
HADRON 2021 is over. Thanks for making it a success!
Home > Timetable > Session details > Contribution details

Contribution Leading parallel

Mexico City -
Meson Spectroscopy

Resonance studies within the Bethe-Salpeter framework


  • Dr. Gernot EICHMANN

Primary authors


I illustrate how resonance masses and widths can be extracted from Bethe-Salpeter equations (BSEs) with valence quark degrees of freedom, using the rho meson as the prime example. The existing calculations employ contour deformations to solve the BSE for complex resonance momenta on the first Riemann sheet and analytic continuations to access the second sheet. Direct calculations on the second sheet are also possible, but for this one needs to solve the full scattering equation.