Speaker
Mr
Tomasz Stebel
(Jagiellonian University)
Description
In my talk I will present twist expansion of differential cross-sections of forward Drell-Yan (DY) process at high energies. The expansion of all invariant DY form-factors is performed assuming GBW saturation model, and the saturation scale plays the role of the hadronic scale of OPE. Results are given both for the differential cross-sections dependent on the Drell-Yan pair transverse momentum qT and for the inclusive cross-sections. It is shown that the Lam-Tung relation is satisfied at twist 2 and broken at twist 4. The results open the way for a forthcoming analysis of multiple scattering and higher twist effects in DY process at the LHC.
Primary author
Mr
Tomasz Stebel
(Jagiellonian University)
Co-authors
Leszek Motyka
(Jagiellonian University)
Mariusz Sadzikowski
(Jagiellonian University)
