GTMD model predictions for diffractive dijet production at EIC

In this paper we consider a small-x model for gluon GTMDs that we fit to data on diffractive dijet production in electron-proton collisions obtained by HERA's H1 Collaboration. Assuming a small number of free parameters, each with a physical motivation, we are able to describe those data fairly well and with this model we obtain predictions for the EIC for both electroproduction and photoproduction which may allow to further test the underlying GTMD description. In the general discussion of the impact parameter dependence we recall some subtle issues related to localization of states, choice of frames, and discuss what these aspects imply for the range of applicability of the model.

Automated summary

In this paper, a small-x model for gluon GTMDs is considered and fitted to data on diffractive dijet production in electron-proton collisions from HERA's H1 Collaboration. Predictions for the EIC for both electroproduction and photoproduction are obtained using this model. The impact parameter dependence and implications for the model's applicability range are discussed, highlighting subtle issues related to localization of states and choice of frames.