Next-to-next-to leading order corrections to deeply virtual Compton scattering: the non-singlet case
arXiv:hep-ph/0510109 · doi:10.1016/j.physletb.2006.01.036
Abstract
We study perturbative QCD corrections to deeply virtual Compton scattering on an unpolarized nucleon target in the flavor non-singlet sector to next-to-next-to-leading order accuracy, restricting ourselves to the kinematically dominant amplitude. The difference between the standard minimal subtraction and the conformal scheme, in which conformal symmetry is manifest, is studied to next-to-leading order. Beyond this order we employ conformal symmetry for the evaluation of perturbative corrections. Within a certain class of generalized parton distributions we find moderate radiative corrections.
13 pages, 2 figures, minor corrections, Phys. Lett. B version
References in corpus (5)
- The Three-Loop Splitting Functions in QCD: The Non-Singlet Case
- Generalized Parton Distributions
- The Uses of Conformal Symmetry in QCD
- Complex conformal spin partial wave expansion of generalized parton distributions and distribution amplitudes
- Analytic Continuation of the Harmonic Sums for the 3--Loop Anomalous Dimensions
Cited by in corpus (17)
- 50 Years of Quantum Chromodynamics
- GPD phenomenology and DVCS fitting - Entering the high-precision era
- Towards a fitting procedure for deeply virtual Compton scattering at next-to-leading order and beyond
- Complex conformal spin partial wave expansion of generalized parton distributions and distribution amplitudes
- Three-loop evolution equation for flavor-nonsinglet operators in off-forward kinematics
- Sum rules and dualities for generalized parton distributions: is there a holographic principle?
- Refined analysis of photon leptoproduction off spinless target
- Deeply Virtual Compton Scattering at a Proposed High-Luminosity Electron-Ion Collider
- Generalized Parton Distributions: visions, basics, and realities
- Deeply virtual Compton scattering beyond next-to-leading order: the flavor singlet case
- Some numerical studies of the evolution of generalized parton distributions
- Two-loop coefficient function for DVCS: Vector contributions
- Nucleon Form Factors to Next-to-Leading Order with Light-Cone Sum Rules
- NLO corrections to the deeply virtual meson production revisited: impact on the extraction of generalized parton distributions
- Effects of next-to-leading order DGLAP evolution on generalized parton distributions of the proton and deeply virtual Compton scattering at high energy
- Accessing GPDs from experiment --- potential of a high-luminosity EIC ---
- Conformal moments of the two-loop coefficient functions in DVCS