5 papers · 1 filter
Theory and phenomenology of generalized parton distributions: a brief overview
A. V. Belitsky, D. Müller
The generalized parton distributions are non-perturbative objects, which encode information on long distance dynamics in a number of exclusive processes. They are hybrids of conven…
NLO Exclusive Evolution Kernels
A. V. Belitsky, A. Freund, D. Müller
We outline a formalism used for a construction of two-loop flavor singlet exclusive evolution kernels in the MS bar scheme. The approach is based on the known pattern of conformal…
The evolution of the nonsinglet twist-3 parton distribution function
B. Geyer, D. Müller, D. Robaschik
The twist three contributions to the -evolution of the spin-dependent structure function are considered in the non-local operator product approach. Defining…
The Parton Distribution Functions in the Limit
D. Müller
We review both the counting rule and the influence of the evolution in for the large behaviour of the valance quark distribution functions. Based on a factorization…
Light-Ray Operators and their Application in QCD
B. Geyer, D. Müller, D. Robaschik
The nonperturbative parton distribution and wave functions are directly related to matrix elements of light-ray (nonlocal) operators. These operators are generalizations of the sta…