Neutral strange hadron production in heavy ion collisions at energies √Snn = 8,7−17,3 Gev

  • Valeriy Kizka National Science Center «Kharkov Institute of Physics and Technology» https://orcid.org/0000-0003-1007-5295
  • Alexander Korchin National Science Center «Kharkov Institute of Physics and Technology» https://orcid.org/0000-0001-7947-170X
  • Victor Trubnikov National Science Center «Kharkov Institute of Physics and Technology»
Keywords: neutral strange hadrons, nuclear modification factor, parton degree of freedom

Abstract

The data on the yield of neutral strange hadrons at the collisions of heavy ions(Au+Au, Pb+Pb) at energies √Snn  = 8,7−17,3 GeV are presented. The ratios of yields of the neutral strange hadrons Λ0/KS0 are compared for the different centrality collisions of heavy ions. The nuclear modification factor RCP as function of transverse momentum for different colliding energies is investigated. The experimental results for Au+Au collisions at energy √Snn  = 9,2 GeV are compared with the different theoretical models (UrQMD2.3, EPOS1.67, HIJING1.7), describing the dynamics of processes of heavy ions collision. It was shown that the model UrQMD2.3, describing heavy ion collisions without using partonic degrees of freedom being created in area of heavy ion interaction, gives better agreement with experimental data than the models EPOS1.67 and HIJING1.7 that use the partonic degrees of freedom.

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Published
2013-06-01
Cited
How to Cite
Kizka, V., Korchin, A., & Trubnikov, V. (2013). Neutral strange hadron production in heavy ion collisions at energies √Snn = 8,7−17,3 Gev. East European Journal of Physics, (1059(3), 22-28. Retrieved from https://periodicals.karazin.ua/eejp/article/view/12921
Issue
No. 1059(3) (2013): The Journal of Kharkiv National University, Physical series "Nucleus, Particles, Fields", ISSN 2221-7754
Section
Original Papers

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