Abstract
The study of hadron production in heavy ion collisions provides the researcher with valuable techniques to investigate the properties of quark gluon plasma (QGP). The hadron and anti-hadron production in the reaction plane, at relativistic heavy ion collisions are studied for the energy per nucleon available at the RHIC-STAR experiment of ∘ _(sNN) = 200 GeV. In order to test the models used for hadron and anti-hadron production, two common event generators (HIJING1.35 and HYDJET+ +2.0.2), established on Monte Carlo techniques, are discussed for hadron and anti-hadron production in the reaction plane for heavy ions 197Au79 −197Au79 collisions at √ ___SNN = 200 GeV. We find that, HYDJET+ + 2.0.2 is more realistic in comparing the results of simulations with those of the experimental data published by the STAR-Collaboration.
Highlights
Relativistic heavy-ion collisions create suitable conditions for a phase transition from hadron to deconfined quark matter QCD and a test benchmark for lattice QCD calculations
Λ± Assymetry Ratio p± Assymetry Ratio κ± Assymetry Ratio π± Assymetry Ratio p (GeV/c) tin Figure 4. ah/ h event asymmetry ratio sum with respect to in reaction plane momentum pTin using (Left) HIJING 1.35 and (Right) HYDJET++ 2.0.2 simulator
HIJING 1.35 could reproduce the asymmetry in baryons and anti-baryons productions, but not for meson and aB/B event-assymetry (θ-φ) aB/B event-assymetry (θ-φ)
Summary
Relativistic heavy-ion collisions create suitable conditions for a phase transition from hadron to deconfined quark matter QCD and a test benchmark for lattice QCD calculations. Many evidences have demonstrated that the quark gluon plasma (QGP) matter has been produced mainly in the central Au − Au collisions at RHIC energies [1]. Large amounts of energy are deposited into a more extended volume than that achieved in elementary particle collisions. These nuclear interactions briefly produce hot and dense matter containing roughly equal numbers of quarks and antiquarks. The relativistic heavy-ion collision can provide an environment to study strong interacting phase transition and QCD matter and an ideal venue to produce antimatter particles [3]
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