Scientific article
Open access

Charged-Particle Multiplicity pp Collisions at s√=1.8TeV

ContributorsCDF Collaboration
Published inPhysical review letters, vol. 87, no. 21, 211804
Publication date2001

We report on a measurement of the mean charged-particle multiplicity of jets in dijet events with dijet masses in the range 80–630GeV/c2, produced at the Tevatron in pp¯ collisions with s√=1.8TeV and recorded by the Collider Detector at Fermilab. The data are fit to perturbative-QCD calculations carried out in the framework of the modified leading log approximation and the hypothesis of local parton-hadron duality. The fit yields values for two parameters in that framework: the ratio of parton multiplicities in gluon and quark jets, r≡Ng-jetpartons/Nq-jetpartons=1.7±0.3, and the ratio of the number of charged hadrons to the number of partons in a jet, KchargedLPHD≡Nchargedhadrons/Npartons=0.57±0.11.

Citation (ISO format)
CDF Collaboration. Charged-Particle Multiplicity <em>pp</em> Collisions at s√=1.8TeV. In: Physical review letters, 2001, vol. 87, n° 21, p. 211804. doi: 10.1103/PhysRevLett.87.211804
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Article (Published version)
ISSN of the journal0031-9007

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