3 papers
hep-ph2025
Additional results on the four-loop flavour-singlet splitting functions in QCD
G. Falcioni, F. Herzog, S. Moch +2
We have extended our previous computations, performed analytically for a general gauge group, of the even- moments of the four-loop flavour-singlet split…
hep-ph2025
Alien operators for PDF evolution
S. Van Thurenhout, G. Falcioni, F. Herzog +1
Understanding the scale dependence of parton distribution functions is vital for precision physics at hadron colliders. The well-known DGLAP evolution equation relates this scale d…
hep-ph2025
Flavour Non-Singlet Splitting Functions at Four Loops in QCD -- The Fermionic Contributions
B. A. Kniehl, S. Moch, V. N. Velizhanin +1
We have determined the fourth-order contributions to the two splitting functions governing the evolution of all flavor differences of quark distributions of hadrons in pertur…