2013/09/30 by David Westmark, Westmark, David
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1309.7989
openalex publication_date 2013/09/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The precise knowledge of parton distribution functions (PDFs) is\nindispensable to the accurate calculation of hadron-initiated QCD hard\nscattering observables. Much of our information on PDFs is extracted by\ncomparing deep inelastic scattering (DIS) and lepton pair production (LPP) data\nto convolutions of the PDFs with the partonic cross sections of these\nprocesses. It is known that partonic cross sections receive large corrections\nin regions of phase space near partonic thresholds that can be resummed using\nthreshold resummation techniques. The effect of threshold resummation on DIS\nand LPP differs because partonic thresholds for the two processes occur in\ndifferent kinematic regions. Recent global fits for PDFs have included DIS data\nfrom the large Bjorken x and moderate Q2 region where threshold effects have\nbeen shown to be large. The present project explores the effects of\nsimultaneously incorporating threshold resummation in both DIS and LPP and to\nevaluate the effects of such additions on global fits.\n