Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Drell-Yan lepton-pair production: qT resummation at N3LL and fiducial cross section at N3LO

Jul 7, 2022, 3:20 PM
Room 1 (Europa Auditorium)

Room 1 (Europa Auditorium)

Parallel Talk Strong interactions and Hadron Physics Strong interactions and Hadron Physics


Giancarlo Ferrera (Istituto Nazionale di Fisica Nucleare)


We present high-accuracy QCD predictions for the transverse-momentum (qT) distribution and fiducial cross sections of Drell-Yan lepton pairs produced in hadronic collisions. At small values of qT we resum to all perturbative orders the logarithmically enhanced contributions up to next-to-next-to-next-to-leading logarithmic (N3LL) accuracy, including all the next-to-next-to-next-to-leading order (N3LO) terms. Our resummed calculation has been implemented in the public numerical program DYTurbo, which produces fast and precise predictions with the full dependence on the final-state lepton kinematics. We consistently combine our resummed results with the known O(aS^3) fixed-order predictions at large values of qT obtaining full N3LO accuracy for fiducial cross sections. We show numerical results for Z and W production at LHC energies discussing the reduction of the perturbative uncertainty with respect to lower-order calculations. We comment on the effect of such high precision QCD predictions on the W boson mass measurement.

In-person participation Yes

Primary authors

Giancarlo Ferrera (Istituto Nazionale di Fisica Nucleare) Stefano Camarda (CERN) Leandro Cieri (IFIC-U. Valencia)

Presentation materials