Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model

We study the transverse momentum (pT) spectra of neutral pions and identified charged hadrons produced in proton–proton (pp), deuteron–gold (d–Au), and gold–gold (Au–Au) collisions at the center of mass energy sNN=200 GeV. The study is made in the framework of a multisource thermal model used in the...

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Main Authors: Jia-Yu Chen, Mai-Ying Duan, Fu-Hu Liu, Khusniddin K. Olimov
Format: Article
Language:English
Published: Wiley 2024-01-01
Series:Advances in High Energy Physics
Online Access:http://dx.doi.org/10.1155/2024/9938669
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author Jia-Yu Chen
Mai-Ying Duan
Fu-Hu Liu
Khusniddin K. Olimov
author_facet Jia-Yu Chen
Mai-Ying Duan
Fu-Hu Liu
Khusniddin K. Olimov
author_sort Jia-Yu Chen
collection DOAJ
description We study the transverse momentum (pT) spectra of neutral pions and identified charged hadrons produced in proton–proton (pp), deuteron–gold (d–Au), and gold–gold (Au–Au) collisions at the center of mass energy sNN=200 GeV. The study is made in the framework of a multisource thermal model used in the partonic level. It is assumed that the contribution to the pT-value of any hadron comes from two or three partons with an isotropic distribution of the azimuthal angle. The contribution of each parton to the pT-value of a given hadron is assumed to obey any one of the standard (Maxwell-Boltzmann, Fermi-Dirac, and Bose-Einstein) distributions with the kinetic freeze-out temperature and average transverse flow velocity. The pT spectra of the final-state hadrons can be fitted by the superposition of two or three components. The results obtained from our Monte Carlo method are used to fit the experimental results of the PHENIX and STAR Collaborations. The results of the present work serve as a suitable reference baseline for other experiments and simulation studies.
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institution Kabale University
issn 1687-7365
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publisher Wiley
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series Advances in High Energy Physics
spelling doaj-art-ef6555d0960743ab98d706c38bd16c9c2025-02-03T06:14:53ZengWileyAdvances in High Energy Physics1687-73652024-01-01202410.1155/2024/9938669Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal ModelJia-Yu Chen0Mai-Ying Duan1Fu-Hu Liu2Khusniddin K. Olimov3State Key Laboratory of Quantum Optics and Quantum Optics DevicesState Key Laboratory of Quantum Optics and Quantum Optics DevicesState Key Laboratory of Quantum Optics and Quantum Optics DevicesLaboratory of High Energy PhysicsWe study the transverse momentum (pT) spectra of neutral pions and identified charged hadrons produced in proton–proton (pp), deuteron–gold (d–Au), and gold–gold (Au–Au) collisions at the center of mass energy sNN=200 GeV. The study is made in the framework of a multisource thermal model used in the partonic level. It is assumed that the contribution to the pT-value of any hadron comes from two or three partons with an isotropic distribution of the azimuthal angle. The contribution of each parton to the pT-value of a given hadron is assumed to obey any one of the standard (Maxwell-Boltzmann, Fermi-Dirac, and Bose-Einstein) distributions with the kinetic freeze-out temperature and average transverse flow velocity. The pT spectra of the final-state hadrons can be fitted by the superposition of two or three components. The results obtained from our Monte Carlo method are used to fit the experimental results of the PHENIX and STAR Collaborations. The results of the present work serve as a suitable reference baseline for other experiments and simulation studies.http://dx.doi.org/10.1155/2024/9938669
spellingShingle Jia-Yu Chen
Mai-Ying Duan
Fu-Hu Liu
Khusniddin K. Olimov
Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model
Advances in High Energy Physics
title Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model
title_full Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model
title_fullStr Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model
title_full_unstemmed Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model
title_short Extracting Kinetic Freeze-Out Properties in High-Energy Collisions Using a Multisource Thermal Model
title_sort extracting kinetic freeze out properties in high energy collisions using a multisource thermal model
url http://dx.doi.org/10.1155/2024/9938669
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AT maiyingduan extractingkineticfreezeoutpropertiesinhighenergycollisionsusingamultisourcethermalmodel
AT fuhuliu extractingkineticfreezeoutpropertiesinhighenergycollisionsusingamultisourcethermalmodel
AT khusniddinkolimov extractingkineticfreezeoutpropertiesinhighenergycollisionsusingamultisourcethermalmodel