Multiplicities and minuets at Tevatron collider energies

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We show that in the parton branching model, the probability distribution does not obey KNO scaling. As energy increases, gluon contribution to multiplicities increases, resulting in the widening of the probability distribution, in agreement with experimental data. We predict that the widening of the distribution will stop at Tevatron Collider energies due to the dominant role of gluons at these energies. We also find that the gluon contribution to the "minijet" cross section increases with energy and becomes dominant at the Tevatron Collider. We calculate QCD minijet cross sections for a variety of structure functions, QCD scales and pTmin. We compare our theoretical results with the experimental data and find that some of the structure functions and choices of scale are preferred by the experimental data. We give theoretical predictions for the minijet cross section at the Tevatron Collider, indicating the possibility of distinguishing between different sets of structure functions and choices of scale.

Original languageEnglish (US)
Pages (from-to)585-591
Number of pages7
JournalNuclear Physics, Section A
Issue numberC
StatePublished - 1989

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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