New look at the QCD factorization

2011/11/02 by B. I. Ermolaev, M. Greco, Ermolaev, B. I. +3
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Phenomenology (hep-ph) #Particle physics theoretical and experimental studies #hep-ex #hep-ph

paper · pdf · doi:10.48550/arxiv.1111.0556

Nalk given at XIV Workshop on High Energy Spin Physics, Dubna, Russia, September 20-24, 2011. 6 pages, 4 figures

arxiv created 2011/11/02 · openalex publication_date 2011/11/02 · arxiv updated 2011/11/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that both the k_T- and collinear factorization for the DIS structure functions can be obtained by consecutive reductions of the Compton scattering amplitude. Each of these reductions is an approximation valid under certain assumptions. In particular, the transitions to the k_T- factorization is possible when the virtualities of the partons connecting the perturbative and non-perturbative blobs are space-like. Then, if the parton distribution has a sharp maximum in k_T, the k_T factorization can be reduced to the collinear factorization.

Related

• QCD collinear factorization, its extensions and the partonic distributions
• Choosing the Factorization Scale in Perturbative QCD
• Partons, Factorization and Resummation, TASI95
• QCD Factorization of Semi-inclusive DIS process at Operator Level
• k-Factorization