Massive quarks in NLO dipole factorization for DIS: Longitudinal photon

Abstract

In this work, we will present the first complete calculation of the one-loop longitudinal photon-to-quark-antiquark light cone wave function, with massive quarks. The quark masses are renormalized in the pole mass scheme. The result is used to calculate the next-to-leading order correction to the high energy Deep Inelastic Scattering longitudinal structure function on a dense target in the dipole factorization framework. For massless quarks the next-to-leading order correction was already known to be sizeable, and our result makes it possible to evaluate it also for massive quarks.

v2: 42 pages, 5 figures, published version. v3: typos in eqs. 111 and 166 fixed

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• Proton structure functions at NLO in the dipole picture with massive quarks
• Single Inclusive Hadron Production in DIS at Small $x$: Next to Leading Order Corrections
• Unintegrated gluon distributions from the color dipole cross section in the BGK saturation model
• Dihadron production in DIS at NLO: the real corrections
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• Complete calculation of exclusive heavy vector meson production at next-to-leading order in the dipole picture
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• A numerical implementation of the NLO DIS structure functions in the dipole picture
• Signatures of gluon saturation from structure-function measurements
• Exclusive production of light vector mesons at next-to-leading order in the dipole picture
• Dijet photoproduction at low $x$ at next-to-leading order and its back-to-back limit