PT Journal
AU Giachino, A
   van Hameren, A
   Ziarko, G
TI A new subtraction scheme at NLO exploiting the privilege of k<sub>T</sub>-factorization
SO Journal of High Energy Physics
JI J. High Energy Phys.
PY 2024
BP 167
EP 39pp
VL 06
IS 6
DI 10.1007/JHEP06(2024)167
LA English
DE Higher-Order Perturbative Calculations; Deep Inelastic Scattering or Small-x Physics; Factorization; Renormalization Group
AB We present a subtraction method for the calculation of real-radiation integrals at NLO in hybrid k(T)-factorization. The main difference with existing methods for collinear factorization is that we subtract the momentum recoil, occurring due to the mapping from an (n + 1)-particle phase space to an n-particle phase space, from the initial-state momenta, instead of distributing it over the final-state momenta.
ER