Low-mass Diffraction Dissociation at the LHC. Role of the Background

A dual model with a nonlinear proton Regge trajectory in the missing mass (M2X) channel is constructed. background based on direct-channel exotic trajectory, developed and applied earlier for inclusive electron-proton cross section description nucleon resonance region, used. The parameters of are determined from extrapolations to experiments. Predictions low-mass (2 < M2X 8 GeV2) diffraction dissociation sections at LHC energies given.