Multiparton distribution functions in quantum chromodynamics

G.M. Zinovjev^a, A.M. Snigirev^b, c
^aBogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine, Kiev, Ukraine
^bLomonosov Moscow State University, Skobeltsyn Institute of Nuclear Physics, Leninskie Gory 1 build. 2, Moscow, 119991, Russian Federation
^cJoint Institute for Nuclear Research, Bogoliubov Laboratory of Theoretical Physics, Dubna, Moscow Region, Russian Federation

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/
Web of Science

000691278000003
Scopus

2-s2.0-85110529789
ADS NASA

2021PhyU...64..357Z
Citation: Zinovjev G M, Snigirev A M "Multiparton distribution functions in quantum chromodynamics" Phys. Usp. 64 357–369 (2021)

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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

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