2001Unpublished venueRequires access

Multiparticle production and perturbative QCD

Igor Dremin

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Abstract

The perturbative quantum chromodynamics (QCD) is quite successful in the description of main features of multiparticle production processes. Ten most appealing characteristics are described in this brief review talk and compared with QCD predictions. The general perturbative QCD approach is demonstrated and its problems are discussed. It is shown that the analytical calculations at the parton level with the low-momentum cut-off reproduce experimental data on the hadronic final state surprisingly accurately even though the perturbative expansion parameter is not very small. Moreover, the perturbative QCD has been able not only to describe the existing data but also to predict many bright qualitative phenomena. CONTENTS 1.

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What this paper is about

The perturbative quantum chromodynamics (QCD) is quite successful in the description of main features of multiparticle production processes. Ten most appealing characteristics are described in this brief review talk and compared with QCD predictions. The general perturbative QCD approach is demonstrated and its problems are discussed. It is shown that the analytical calculations at the parton level with the low-momentum cut-off reproduce experimental data on the hadronic final state surprisingly accurately even though the perturbative expansion parameter is not very small. Moreover, the perturbative QCD has been able not only to describe the existing data but also to predict many bright qualitative phenomena. CONTENTS 1.

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Available abstract

The perturbative quantum chromodynamics (QCD) is quite successful in the description of main features of multiparticle production processes. Ten most appealing characteristics are described in this brief review talk and compared with QCD predictions. The general perturbative QCD approach is demonstrated and its problems are discussed. It is shown that the analytical calculations at the parton level with the low-momentum cut-off reproduce experimental data on the hadronic final state surprisingly accurately even though the perturbative expansion parameter is not very small. Moreover, the perturbative QCD has been able not only to describe the existing data but also to predict many bright qualitative phenomena. CONTENTS 1.

Key concepts: Physics, Particle physics, Perturbative QCD, Production (economics), Quantum chromodynamics, Economics, Macroeconomics

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