Estimation of non-femtoscopic effects in p+p and p+A collisions at RHIC energies using PYTHIA and HIJING generators
Abstract
The spatial extents of particle emission source in high-energy collisions can be measured using two-particle femtoscopic correlations. In collisions with small multipli cities, such as proton-proton collisions, correlation functions can be distorted by non-femtos copic effects, for example due to the correlations that caused by energy-momentum conservatio n laws, jets and mini-jets. To estimate these effects, a simulation of p+p collisions at s=200 and s=510 GeV using PYTHIA 6.4.28 and HIJING 1.383, and p+Au collisions at sNN=200 GeV using HIJING were performed. Charged pion and kaon correlation functions obtained from the Monte Carlo generators and their comparison to the experimental data are p resented.
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