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 <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:msub><a:mrow><a:mi>α</a:mi></a:mrow><a:mrow><a:mi>s</a:mi></a:mrow></a:msub></a:mrow></a:math> 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 ++ and available within the framework. Published by the American Physical Society 2024