Estimation of non-femtoscopic effects in p+p and p+A collisions at RHIC energies using PYTHIA and HIJING generators

摘要

The spatial extents of particle emission source in high-energy collisions canbe measured using two-particle femtoscopic correlations. In collisions withsmall multipli cities, such as proton-proton collisions, correlation functionscan be distorted by non-femtos copic effects, for example due to thecorrelations that caused by energy-momentum conservatio n laws, jets andmini-jets. To estimate these effects, a simulation of p+p collisions at$\sqrt{s}$=200 and $\sqrt{s}$=510 GeV using PYTHIA 6.4.28 and HIJING 1.383, andp+Au collisions at $\sqrt{s_{NN}}$=200 GeV using HIJING were performed. Chargedpion and kaon correlation functions obtained from the Monte Carlo generatorsand their comparison to the experimental data are p resented.