SIDIS and inclusive DIS beyond eikonal order : Quark background field contribution

Deep inelastic scattering (DIS) is one of the clean processes to study observables in Color Glass Condensate effective field theory. For semi-inclusive deep inelastic scattering (SIDIS) contributions coming due to dipole approximation at eikonal order have been studied till now. In this proceeding, we will present computations of a new contribution to the cross-section of SIDIS at next-to-eikonal accuracy including t-channel quark exchange through quark background field, and obtain its relation to transverse momentum dependent (TMD) calculations under a small-x limit. We calculate similar contributions for inclusive DIS.