Speaker
Jacobo Ruiz de Elvira
(HISKP, University of Bonn)
Description
Starting from hyperbolic dispersion relations for the invariant amplitudes of πN scattering together with crossing symmetry and unitarity, we derive and solve a closed system of integral equations for the partial waves of both s-channel (πN → πN) and t-channel (ππ →NN) reactions, called Roy-Steiner equations. Special attention is given to the possible sources of uncertainties and to the obtained σpiN term value.
Primary author
Jacobo Ruiz de Elvira
(HISKP, University of Bonn)
Co-authors
Prof.
Bastian Kubis
(University of Bonn)
Dr
Martin Hoferichter
(TU Darmstadt)
Prof.
Ulf Meissner
(Bonn University)
