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INCLUSIVE PARTICLE SPECTRA FROM QCD CASCADES

Department of Theoretical Physics, University of Lund Sölvegatan 14A, S-22362 Lund, Sweden

Nuclear Physics Institute, 188350 Gatchina, St. Petersburg, USSR

Department of Theoretical Physics, University of Lund Sölvegatan 14A, S-22362 Lund, Sweden

Nuclear Physics Institute, 188350 Gatchina, St. Petersburg, USSR

Supported by the INFN Eloisatron Project and World Laboratory. Address after Sept. 1, 1991, Department of Physics, University of Durham, Durham DH1 3LE, U.K.

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S.I. TROYAN

Department of Theoretical Physics, University of Lund Sölvegatan 14A, S-22362 Lund, Sweden

Nuclear Physics Institute, 188350 Gatchina, St. Petersburg, USSR

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https://doi.org/10.1142/S0217751X92000818Cited by:48 (Source: Crossref)

Abstract

New results in applications of the analytical perturbative approach to the description of particle distributions in QCD jets are presented. We study inclusive energy spectra of partons from QCD cascades truncated at different values of the cutoff parameter Q₀, which can be used to model the energy distributions of massive hadrons in the framework of the local parton-hadron duality hypothesis. Results of straightforward numerical calculations of parton distributions which solve the MLLA evolution equations are compared to approximate formulas representing the spectra in terms of a few analytically calculated shape parameters.