The structure of hadrons (protons) and the dynamics of their interaction are usually studied in collisional experiments by exploring hard single parton—parton scattering described in terms of structure functions (single-particle distributions). Completely new and unique information comes from the selection and analysis of events in which two (or more) hard parton scatterings concurrently occur in a single $\bar {\text p}{\text p}$ (Tevatron; FermiLab, USA) or pp (LHC; CERN, Switzerland) collision. The simulation of such double (multiple) parton scatterings involves two-parton (multiparton) distribution functions. Properties of these functions, which may be extracted from quantum chromodynamics, are reviewed.

Keywords: multiparton interactions, double parton scatterings, collinear approach PACS: 12.38.−t, 12.38.Bx (all) DOI: 10.3367/UFNe.2020.10.038857 URL: https://ufn.ru/en/articles/2021/4/c/ 000691278000003 2-s2.0-85110529789 2021PhyU...64..357Z Citation: Zinovjev G M, Snigirev A M "Multiparton distribution functions in quantum chromodynamics" Phys. Usp. 64 357–369 (2021) BibTexBibNote ® (generic)BibNote ® (RIS)MedlineRefWorks Received: 12th, April 2020, revised: 15th, October 2020, accepted: 19th, October 2020 Оригинал: Зиновьев Г М, Снигирев А М «Многопартонные функции распределения в квантовой хромодинамике» УФН 191 372–385 (2021); DOI: 10.3367/UFNr.2020.10.038857