Particle production at energies available at the CERN Large Hadron Collider within an evolutionary model

doi:10.1103/PhysRevC.97.064901

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DOI Доступ к ресурсу на сайте издателя			10.1103/PhysRevC.97.064901

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Title: Particle production at energies available at the CERN Large Hadron Collider within an evolutionary model
Creator: Sinyukov, Yu. M.
|
Shapoval, V. M.
Date: 2018
DOI: 10.1103/PhysRevC.97.064901
Description: The particle yields and particle number ratios in Pb+Pb collisions at the LHC energy sNN−−−−√=2.76 TeV are described within the integrated hydrokinetic model (iHKM) at the two different equations of state (EoS) for the quark-gluon matter and the two corresponding hadronization temperatures, T=165 MeV and T=156 MeV. The role of particle interactions at the final afterburner stage of the collision in the particle production is investigated by means of comparison of the results of full iHKM simulations with those where the annihilation and other inelastic processes (except for resonance decays) are switched off after hadronization/particlization, similarly as in the thermal models. An analysis supports the picture of continuous chemical freeze-out in the sense that the corrections to the sudden chemical freeze-out results, which arise because of the inelastic reactions at the subsequent evolution times, are noticeable and improve the description of particle and number ratios. An important observation is that although the particle number ratios with switched-off inelastic reactions are quite different at different particlization temperatures which are adopted for different equations of state to reproduce experimental data, the complete iHKM calculations bring very close results in both cases.

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collection(s): Физический факультет
Identifier: смотреть в электронном каталоге НБ ТГУ
Type: статьи в журналах
Source: Physical Review C. 2018. Vol. 97, № 6. P. 064901-1-064901-5
Language: eng

Created: 03-11-2020

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Физический факультет Particle production at energies available at the CERN Large Hadron Collider within an evolutionary model