One-loop evolution of twist-2 generalized parton distributions

We revisit the evolution of generalized parton distributions at the leading order in the strong coupling constant alpha s for all of the twist-2 quark and gluon operators. We rederive the relevant one-loop evolution kernels, expressing them in a form suitable for implementation, and check analytically that some basic properties, such as Dokshitzer-Gribov-Lipatov-Altarelli-Parisi/Efremov-Radyushkin-Brodsky-Lepage limits and polynomiality conservation, are fulfilled. We also present a number of numerical results obtained with a public implementation of the evolution in the library APFEL++ and available within the PARTONS framework.