Jets in pp collisions at RHIC and Monte Carlo study of z-scaling

Details Jets in pp collisions at RHIC and Monte Carlo study of z-scaling Jets in pp collisions at RHIC and Monte Carlo study of z-scaling

2007-08-18

arxiv.org/abs/0708.2465v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, LaTeX, 7 figures, Presented at the XVIII International Baldin Seminar on High Energy Physics Problems "Relativistic N

Scientific paper

Impact of the cone algorithm parameters Ecut, Eseed, R on the efficiency and characteristics of the reconstructed jets in p-p collisions at the energy sqrt s = 200 GeV is studied. The PYTHIA Monte Carlo generator is used for event generation. The dependence of dijet production fraction on the parton transverse momentum at different algorithm parameters is analyzed. The dependence of reconstruction efficiency of parton energy in dijet events and two leading jets in N-jet events on Ecut, Eseed, R is studied. Monte Carlo results are compared with predictions made in the framework of z-scaling and experimental data obtained at RHIC. The independence of the slope parameter beta of the scaling function, on the algorithm parameters over the energy range ETJet=25-60 GeV is found. The strong dependence of the invariant cross section and the slope parameter on the algorithm parameters with decreasing of ETJet for ETJet<25 GeV is observed.

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