Massive quarks in NLO dipole factorization for DIS: Transverse photon

Abstract

We calculate the light cone wave functions for the QCD Fock components in a transverse virtual photon necessary for applications at next-to-leading order in the QCD coupling, including quark masses. We present a detailed calculation of both the one loop wave function for the quark-antiquark Fock component and the tree level wave function for the quark-antiquark-gluon Fock component. The quark masses are renormalized in the pole mass scheme, satisfying constraints from the requirement of Lorentz invariance. In particular the quark Pauli form factor at NLO is recovered from the on-shell limit of the quark-antiquark Fock component. We use our result to calculate the next-to-leading order correction to the high energy deep inelastic scattering (DIS) transverse structure function on a dense target in the dipole factorization framework. Together with our earlier result for longitudinal photons, this completes the calculation of the total deep inelastic scattering cross section in the dipole picture with massive quarks at next-to-leading order, enabling a comparison with experimental data.

58 pages, 8 figures

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• Diffractive deep inelastic scattering at NLO in the dipole picture: the $q\bar{q}g$ contribution
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• Inferring the initial condition for the Balitsky-Kovchegov equation
• High-energy dipole scattering amplitude from evolution of low-energy proton light-cone wave functions
• Diffractive single hadron production in a saturation framework at the NLO
• Direct quarkonium-plus-gluon production in DIS in the Color Glass Condensate
• Initial condition for the Balitsky-Kovchegov equation at next-to-leading order
• Complete calculation of exclusive heavy vector meson production at next-to-leading order in the dipole picture
• Impact-parameter-dependent solutions to the Balitsky-Kovchegov equation at next-to-leading order
• Determination of the initial condition for the Balitsky-Kovchegov equation with transformers
• Photoproduction of ${\eta }_c\gamma$ pairs in CGC framework
• Parton model contributions as next-to-eikonal corrections to the dipole factorization of DIS and SIDIS at low $x_{Bj}$
• A numerical implementation of the NLO DIS structure functions in the dipole picture
• Dijet photoproduction at low $x$ at next-to-leading order and its back-to-back limit
• Reconstruction of the Dipole Amplitude in the Dipole Picture as a mathematical Inverse Problem
• Diffractive deep inelastic scattering in the dipole picture: the $q\bar{q}g$ contribution in exact kinematics