Energy Dependence of Particle Ratios in High Energy Nucleus-Nucleus Collisions: A USTFM Approach
We study the identified particle ratios produced at mid-rapidity (y<0.5) in heavy-ion collisions, along with their correlations with the collision energy. We employ our earlier proposed unified statistical thermal freeze-out model (USTFM), which incorporates the effects of both longitudinal and t...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2018/9285759 |
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| author | Inam-ul Bashir Rameez Ahmad Parra Hamid Nanda Saeed Uddin |
| author_facet | Inam-ul Bashir Rameez Ahmad Parra Hamid Nanda Saeed Uddin |
| author_sort | Inam-ul Bashir |
| collection | DOAJ |
| description | We study the identified particle ratios produced at mid-rapidity (y<0.5) in heavy-ion collisions, along with their correlations with the collision energy. We employ our earlier proposed unified statistical thermal freeze-out model (USTFM), which incorporates the effects of both longitudinal and transverse hydrodynamic flow in the hot hadronic system. A fair agreement seen between the experimental data and our model results confirms that the particle production in these collisions is of statistical nature. The variation of the chemical freeze-out temperature and the baryon chemical potential with respect to collision energies is studied. The chemical freeze-out temperature is found to be almost constant beyond the RHIC energy and is found to be close to the QCD predicted phase-transition temperature suggesting that the chemical freeze-out occurs soon after the hadronization takes place. The vanishing value of chemical potential at LHC indicates very high degree of nuclear transparency in the collision. |
| format | Article |
| id | doaj-art-0d4a8db3028f412783a3e180779c8f6c |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-0d4a8db3028f412783a3e180779c8f6c2025-08-20T03:54:15ZengWileyAdvances in High Energy Physics1687-73571687-73652018-01-01201810.1155/2018/92857599285759Energy Dependence of Particle Ratios in High Energy Nucleus-Nucleus Collisions: A USTFM ApproachInam-ul Bashir0Rameez Ahmad Parra1Hamid Nanda2Saeed Uddin3Department of Physics, Jamia Millia Islamia (Central University), New Delhi, IndiaDepartment of Physics, Jamia Millia Islamia (Central University), New Delhi, IndiaDepartment of Physics, Jamia Millia Islamia (Central University), New Delhi, IndiaDepartment of Physics, Jamia Millia Islamia (Central University), New Delhi, IndiaWe study the identified particle ratios produced at mid-rapidity (y<0.5) in heavy-ion collisions, along with their correlations with the collision energy. We employ our earlier proposed unified statistical thermal freeze-out model (USTFM), which incorporates the effects of both longitudinal and transverse hydrodynamic flow in the hot hadronic system. A fair agreement seen between the experimental data and our model results confirms that the particle production in these collisions is of statistical nature. The variation of the chemical freeze-out temperature and the baryon chemical potential with respect to collision energies is studied. The chemical freeze-out temperature is found to be almost constant beyond the RHIC energy and is found to be close to the QCD predicted phase-transition temperature suggesting that the chemical freeze-out occurs soon after the hadronization takes place. The vanishing value of chemical potential at LHC indicates very high degree of nuclear transparency in the collision.http://dx.doi.org/10.1155/2018/9285759 |
| spellingShingle | Inam-ul Bashir Rameez Ahmad Parra Hamid Nanda Saeed Uddin Energy Dependence of Particle Ratios in High Energy Nucleus-Nucleus Collisions: A USTFM Approach Advances in High Energy Physics |
| title | Energy Dependence of Particle Ratios in High Energy Nucleus-Nucleus Collisions: A USTFM Approach |
| title_full | Energy Dependence of Particle Ratios in High Energy Nucleus-Nucleus Collisions: A USTFM Approach |
| title_fullStr | Energy Dependence of Particle Ratios in High Energy Nucleus-Nucleus Collisions: A USTFM Approach |
| title_full_unstemmed | Energy Dependence of Particle Ratios in High Energy Nucleus-Nucleus Collisions: A USTFM Approach |
| title_short | Energy Dependence of Particle Ratios in High Energy Nucleus-Nucleus Collisions: A USTFM Approach |
| title_sort | energy dependence of particle ratios in high energy nucleus nucleus collisions a ustfm approach |
| url | http://dx.doi.org/10.1155/2018/9285759 |
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