Dijet impact factor in DIS at next-to-leading order in the Color Glass Condensate

We compute the next-to-leading order impact factor for inclusive dijet production in deeply inelastic electron-nucleus scattering at small x(Bj). Our computation, performed in the framework of the Color Glass Condensate effective field theory, includes all real and virtual contributions in the gluon shock wave background of all-twist lightlike Wilson line correlators. We demonstrate explicitly that the rapidity evolution of these correlators, to leading logarithmic accuracy, is described by the JIMWLK Hamiltonian. When combined with the next-to-leading order JIMWLK Hamiltonian, our results for the impact factor improve the accuracy of the inclusive dijet cross-section to O(alpha(2)(s) ln(x(f)/x(Bj))), where x(f) is a rapidity factorization scale. These results are an essential ingredient in assessing the discovery potential of inclusive dijets to uncover the physics of gluon saturation at the Electron-Ion Collider.

Automated summary

In this study, the next-to-leading order impact factor for inclusive dijet production in deeply inelastic electron-nucleus scattering at small x(Bj) is computed within the framework of the Color Glass Condensate effective field theory, improving the accuracy of the cross-section. These results are crucial for evaluating the discovery potential of inclusive dijets to reveal the physics of gluon saturation at the Electron-Ion Collider.