Models of Total, Elastic and Diffractive Cross Sections

Understand

The LHC has brought much new information on total, elastic and diffractive cross sections, which is not always in agreement with extrapolations from lower energies.

• The default framework in the Pythia event generator is one case in point.
• In this article we study and implement two recent models, as more realistic alternatives.
• Both describe total and elastic cross sections, whereas one also includes single diffraction.