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65822

Event by Event Studies of Au-Au Collisions at √(S_NN )=200 GeV Using Two Event Generators

Article

Last updated: 22 Jan 2023

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Abstract

The study of hadrons production in relativistic heavy ion collisions at STAR provides the researchers with valuable techniques to investigate the properties of quark gluon plasma (QGP) and the subsequent hadronizations. In the present work, we are going to investigate the asymmetry in hadron and anti-hadron productions at the relativistic heavy ion collisions with parameters; Δϕ: the azimuthal angle of the transverse momentum vector (p_t ) ⃗ with respect to the reaction plane, p_t: the transverse momentum, η:seudo rapidity, and Y: the rabidity, and allowing for event by event (i.e. local) studies. HIJING and HYDJET++ models are used to explain the data of the experiments produced at the RHIC for Au-Au relativistic collision by STAR, PHENIX, and BRAHMS experiments. Hadrons and the anti-hadrons productions are based on Monte Carlo techniques in the models. The particles selected for this study are proton and lambda (P^±,〖 Λ〗^± ) for baryons, and pi and kaon (π^±,κ^±) for mesons in order to determine the most probable production-asymmetries regions in phase-space of hadrons and anti-hadrons for heavy ions 〖^197〗 Au_79 -〖^197〗 Au_79 collisions at √(S_NN )=200 GeV with about ≥800 events, which are generated from each model event generator. It is found that, HYDJET++ 2.0.2 event generator is more realistic in comparing the results of simulations with those of the experimental data published by the BRAHMS, PHENIX, and STAR Collaboration.

DOI

10.21608/ajnsa.2019.9617.1182

Keywords

Heavy ion collision (HIC), RHIC, proton and lambda, pi and kaon, hadron and anti-hadron, asymmetry sum ratio

Authors

First Name

Mohammed

Last Name

Mohammed Soleiman

MiddleName

Hasan

Affiliation

Physics Department, Faculty of Science, Cairo University Giza,, 12613, Egypt.

Email

mhm.soleiman@gmail.com

City

Cairo

Orcid

-

Volume

53

Article Issue

1

Related Issue

10143

Issue Date

2020-01-01

Receive Date

2019-02-20

Publish Date

2020-01-01

Page Start

46

Page End

57

Print ISSN

1110-0451

Online ISSN

2090-4258

Link

https://ajnsa.journals.ekb.eg/article_65822.html

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https://ajnsa.journals.ekb.eg/service?article_code=65822

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5

Type

Original Article

Type Code

455

Publication Type

Journal

Publication Title

Arab Journal of Nuclear Sciences and Applications

Publication Link

https://ajnsa.journals.ekb.eg/

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Article

Created At

22 Jan 2023