Corrections to the generalized vector dominance due to diffractive rho_3 production

TL;DR

This paper revises the generalized vector dominance model by incorporating corrections from diffractive rho_3 production, highlighting its sensitivity to new diffraction phenomena in photon-hadron interactions.

Contribution

It introduces a coupled channel analysis of spin-orbital excitations, specifically addressing rho_3 production as a correction to the vector dominance model.

Findings

rho_3 production affects diffractive DIS models

coupled channel analysis reveals new diffraction sensitivities

vector dominance can be refined with rho_3 corrections

Abstract

The idea of the vector dominance is still in use in various analyses of experimental data of photon-hadron reactions. It makes sense, therefore, to recast results of microscopic calculations of such reactions in this language. Here we present the diffractive DIS $\rho_3$ production as a specific correction to the generalized vector dominance. We perform a coupled channel analysis of spin-orbital excitations in diffractive photoproduction and reiterate the point that rho_3 in diffractive DIS will be sensitive to a novel aspect of diffraction.