Diffractive dissociation processes in a field-theoretic quark model

We consider here diffractive dissociation processes like $A+B\to A+X$ in a field-theoretic quark model with a phenomenological current-current interaction in quark space used earlier for discussing diffraction scattering in the same model. The process $A+B\to A+X$ is interpreted as being diffractive for the hadron $A$ with correlation to the form factor of $A$, and is incoherent for the hadron $B$ with correlation to the structure function of $B$. These assumptions in the quark model yield that the cross sections $\frac{d\sigma }{\mathrm{dt}}d{M}^2$ have the same structure as is otherwise derived on the basis of the more established triple-Pomeron coupling, which could probably be partly anticipated since the Pomeron corresponds to a spin-1 object with vacuum quantum numbers. The results are compared with experiments, and broad agreement at high energies is observed. With these ideas, in the region of small mass of the dissociated system, the contributions to the cross section from diffractive dissociation and from diffractive production of resonances can be separated, where a limitation for the incoherent scattering in quark-parton models is used.