Jet Production in Hadron-Hadron Collisions at High Energies

Abstract

Jet Production in Hadron-Hadron Collisions at High Energies We investigated the effects of jet production on the following parameters: multiplicity, pseudorapidity, transverse momentum and transverse mass distributions of charged particles produced in hadron-hadron collisions at 1.8 TeV, centre of mass energy, using the Dubna version of HIJING model. These distributions are analyzed for the whole range and for six selected regions of the polar angle (angle of the secondary particles with respect to the beam axis) as a function of number of jets. The results for the charged particles multiplicity distributions were compared with experimental ones coming from the SPS and Tevatron experiments and the increase in the multiplicity of the charged particles influenced by multi-jet events is discussed. The results for pseudorapidity distributions are interpreted and discussed in connection to the increase observed in the multiplicity of charged particles as a result of its multi-jet dependence and are also discussed in comparison with the experimental results coming from the CDF Collaboration. The analysis of effect of the multi-jet events on the transverse momentum and transverse mass distributions is also discussed in connection to the increase in the multiplicity and pseudorapidity density of charged particles. We concluded that high multiplicity regions, the increased pseudorapidity density and the high pT regions correspond mainly to the multi-jet events.