Speaker
Aleksandra Lelek
(University of Antwerp (BE))
Description
We discuss the parton branching (PB) evolution equation for transverse momentum dependent (TMD) parton distribution functions (PDFs), especially we concentrate on the angular ordering constrain and its effect on the TMD distributions.
We discuss application of the PB TMDs to precise prediction of Drell-Yan transverse momentum spectrum at LHC, especially we stress the role of angular ordering in the low transverse momentum region.
We compare the PB implementation of the angular ordering condition with the Kimber-Martin-Ryskin-Watt (KMRW) and the Collins-Soper-Sterman (CSS) approaches, both at the analytical and numerical level.
Authors
Francesco Hautmann
(Institute of Theoretical Physics)
Lissa Keersmaekers
(University of Antwerp)
Aron Mees van Kampen
(University of Antwerp)
Aleksandra Lelek
(University of Antwerp (BE))
