papers
Publications (2)
hep-ph2012
Dispersive analysis of the scalar form factor of the nucleon
M. Hoferichter, C. Ditsche, B. Kubis +1
Based on the recently proposed Roy-Steiner equations for pion-nucleon scattering, we derive a system of coupled integral equations for the pi pi --> N-bar N and K-bar K --> N-bar N…
hep-ph2012
Roy-Steiner equations for pion-nucleon scattering
C. Ditsche, M. Hoferichter, B. Kubis +1
Starting from hyperbolic dispersion relations, we derive a closed system of Roy-Steiner equations for pion-nucleon scattering that respects analyticity, unitarity, and crossing sym…