NLO Corrections to the γ* Impact Factor: First Numerical Results for the Real Corrections to γ*_L

Abstract

We analytically perform the transverse momentum integrations in the real corrections to the longitudinal γ*_L impact factor. The resulting integrals are Feynman parameter integrals, and we provide a MATHEMATICA file which contains the integrands. The remaining integrals are carried out numerically. We perform a numerical test, and we compute those parts of the impact factor which depend upon the energy scale s_0: they are found to be negative and, with decreasing values of s_0, their absolute value increases.

27 pages, 5 figures, uses revtex4; misprint in fig.4,5 and typos corrected; for associated files, see http://www.desy.de/uni-th/smallx/kyrie/ImpFactor/index.html

Cited by in corpus (44)

• Photon impact factor and $k_T$-factorization for DIS in the next-to-leading order
• Photon impact factor in the next-to-leading order
• Dipole factorization for DIS at NLO I: Loop correction to the photon to quark-antiquark light-front wave-functions
• An "all-poles" approximation to collinear resummations in the Regge limit of perturbative QCD
• NLO corrections for the dipole factorization of DIS structure functions at low x
• Dipole factorization for DIS at NLO: Combining the $q\bar{q}$ and $q\bar{q}g$ contributions
• Small x Phenomenology - summary of the 3rd Lund Small x Workshop in 2004
• A Global Fit to Scattering Data with NLL BFKL Resummations
• Electroproduction of two light vector mesons in the next-to-leading approximation
• The next-to-leading order jet vertex for Mueller-Navelet and forward jets revisited
• Inclusive production of a pair of hadrons separated by a large interval of rapidity in proton collisions
• Hunting BFKL in semi-hard reactions at the LHC
• High-energy resummation in ${\Lambda }_c$ baryon production
• High-energy resummation in heavy-quark pair photoproduction
• Inclusive production of a heavy-light dijet system in hybrid high-energy and collinear factorization
• High-energy resummed distributions for the inclusive Higgs-plus-jet production at the LHC
• Electroproduction of two light vector mesons in next-to-leading BFKL: study of systematic effects
• Bottom-flavored inclusive emissions in the variable-flavor number scheme: A high-energy analysis
• High-energy emissions of light mesons plus heavy flavor at the LHC and the Forward Physics Facility
• Diffractive deep inelastic scattering at NLO in the dipole picture: the $q\bar{q}g$ contribution
• Gluon Distributions and Fits using Dipole Cross-Sections
• Azimuthal decorrelation of forward jets in Deep Inelastic Scattering
• BFKL resummation effects in the gamma* gamma* total hadronic cross section
• ${\gamma }^{\ast }{\gamma }^{\ast }$ Cross Section at NLO and Properties of the BFKL Evolution at Higher Orders
• Mueller-Navelet jets at the LHC: hunting data with azimuthal distributions
• The quark induced Mueller-Tang jet impact factor at next-to-leading order
• The Gluon-Induced Mueller-Tang Jet Impact Factor at Next-to-Leading Order
• Vector quarkonia at the LHC with JETHAD: A high-energy viewpoint
• Confronting next-leading BFKL kernels with proton structure function data
• Emergence of high-energy dynamics from cascade-baryon detections at the LHC
• A Variable Flavour Number Scheme for Heavy Quark Production at Small x
• Exotic tetraquarks at the HL-LHC with JETHAD: A high-energy viewpoint
• Next-leading BFKL effects in forward-jet production at HERA
• Next-to-leading BFKL phenomenology of forward-jet cross sections at HERA
• Triply Heavy $\Omega$ Baryons with JETHAD: A High-Energy Viewpoint
• Tetraquark-Jet Systems at the High-Luminosity LHC
• Probing QCD dynamics in two-photon interactions at high energies
• Elastic scattering of virtual photons via quark loop in Double-Logarithmic Approximation
• Light-by-light scattering in Double-Logarithmic Approximation
• Unequal rapidity correlators in the dilute limit of JIMWLK
• The Virtual Photon-Gluon Impact Factor with Massive Quarks and Exact Gluon Kinematics
• Diffractive photon production at high momentum transfer in $ep$ collisions
• Diffraction 2006: Theoretical Summary
• The Real Corrections to the Gamma* Impact Factor: First Numerical Results