Multiparton distribution functions in quantum chromodynamicsстатья
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Дата последнего поиска статьи во внешних источниках: 8 сентября 2021 г.
Аннотация: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 ¯pp (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.