Speaker
Prof.
Enrique Ruiz Arriola
(Universidad de Granada)
Description
Following simple large Nc arguments and perturbative QCD constraints complemented with uncertainty estimates based on the idea of meson dominance and the half-width rule, we describe the pseudoscalar form factors of the nucleon. We analyze their implications in the space-like region at intermediate and low energies and compare to recent lattice QCD determinations. Our analysis allows for a simple determination of the pion-nucleon coupling constant at a precision level that matches the most accurate determination to date based on the analysis of the Granada nucleon-nucleon database (8000 experimental 𝑁𝑁 scattering data). Based on this we provide a suitable extension to the less accessible SU(3) couplings corresponding to hyperon scattering.
Primary authors
Prof.
Enrique Ruiz Arriola
(Universidad de Granada)
Dr
Pablo Sanchez Puertas
(Universidad de Granada)
