Analytical QCD and multiparticle production

Abstract

We review the perturbative approach to multiparticle production in hard collision processes. It is investigated to what extent parton level analytical calculations at low momentum cut-off can reproduce experimental data on the hadronic final state. Systematic results are available for various observables with the next-to-leading logarithmic accuracy (the so-called modified leading logarithmic approximation - MLLA). We introduce the analytical formalism and then discuss recent applications concerning multiplicities, inclusive spectra, correlations and angular flows in multi-jet events. In various cases the perturbative picture is surprisingly successful, even for very soft particle production.

97 pages, LaTeX, 22 figures, uses sprocl.sty (included)

References in corpus (4)

• Determination of the QCD Coupling ${\alpha }_s$
• Hadron Multiplicities
• Perturbative QCD and Power Corrections
• Jets in Hadron Collisions

Cited by in corpus (11)

• Properties of jet fragmentation using charged particles measured with the ATLAS detector in $pp$ collisions at $\sqrt{s}=13$ TeV
• Next-to-MLLA corrections to single inclusive kt-distributions and 2-particle correlations in a jet
• QCD explanation of oscillating hadron and jet multiplicity moments
• A note on rapidity distributions at the LHC
• Limiting soft particle emission in e+e-, hadronic and nuclear collisions
• QCD evolution of hadron and jet multiplicity moments
• Limiting soft particle production and QCD
• Inclusive hadronic distributions in jets and sub-jets with jet axis from color current
• Dead cone effect in charm and bottom quark jets
• Oscillating Hadron and Jet Multiplicity Moments
• Some problems of the pQCD jet calculus