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Many-parton distribution functions in quantum chromodynamics

 a,  b, c
a Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine
b Lomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Leninskie Gory 1 build. 2, Moscow, 119991, Russian Federation
c Joint Institute for Nuclear Research, Bogoliubov Laboratory of Theoretical Physics, Dubna, Moscow Region, Russian Federation

The regular parton model is widely applied for studying the proton structure and in analyzing the various processes of hadron collisions being grounded on the considerations of hard single parton-parton scatterings which are characterized with the structure functions (single parton distributions). Apparently, new and pretty unique information comes at processing and analyzing events in which two (or more) hard parton scatterings take place concurrently in one proton-antiproton collision at Tevatron (in FermiLab, USA) and proton-proton collision at LHC (in CERN, Switzerland). In order to deal with such double-parton (multi-parton) scatterings one needs to know double-parton (many-parton) distribution functions. The basic features of these many-parton distribution functions, which can be extracted from perturbative QCD, 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
Citation: Zinovjev G M, Snigirev A M "Many-parton distribution functions in quantum chromodynamics" Phys. Usp., accepted

Received: 12th, April 2020, revised: 15th, October 2020, 19th, October 2020

Оригинал: Зиновьев Г М, Снигирев А М «Многопартонные функции распределения в квантовой хромодинамике» УФН, принята к публикации; DOI: 10.3367/UFNr.2020.10.038857

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