Elastic and inelastic diffraction at the LHC

Abstract

Abstract. New phenomena discovered at the LHC in nearly forward scattering are discussed. The properties of elastic and inelastic diffraction are related due to Regge factorisation and pomeron dominance.

The elastic differential pp cross-section at 13 TeV: an empirical model analysis

“…We stress that the asymptotic behaviour of the slope B(s) chosen above, differs from the usual ln(s) behaviour expected from Regge or Pomeron pole trajectories. Namely, in this empirical model, the slope in the forward region increases faster than a logarithm, in agreement with an earlier study by Ryskin and Shegelsky [15],[see, also [16], [17], [18] and predicting a higher energy behaviour as confirmed by the recent TOTEM observations at LHC13. In the following subsections, we shall apply this model to the recent TOTEM data, starting with the CNI region.…”