Entropy Analysis in Relativistic Heavy-Ion Collisions
Entropy creation in multiparticle system is investigated by analysing the experimental data on ion-ion collisions at AGS and SPS energies and the results thus obtained are compared with those predicted by multiphase transport and correlation-free Monte Carlo models. Entropies produced in limited- an...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2013/836071 |
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| author | Shakeel Ahmad A. Ahmad Anuj Chandra M. Zafar M. Irfan |
| author_facet | Shakeel Ahmad A. Ahmad Anuj Chandra M. Zafar M. Irfan |
| author_sort | Shakeel Ahmad |
| collection | DOAJ |
| description | Entropy creation in multiparticle system is investigated by analysing the experimental data on ion-ion collisions at AGS and SPS energies and the results thus obtained are compared with those predicted by multiphase transport and correlation-free Monte Carlo models. Entropies produced in limited- and full-phase space are observed to increase with increasing beam energy. The entropy values, normalized to the maximum rapidity and plotted against pseudorapidity (bin width also normalized to the maximum rapidity), are found to be energy independent, exhibiting a kind of
entropy scaling. Such scaling is observed in the full phase space as well as in the regions confined to the forward or backward hemispheres. The findings also reveal that there exist strong correlations amongst the particles produced in the forward and backward hemispheres around the midrapidity. These correlations are found to be of short range in nature, and the contributions from the long-range correlations seem to be absent.
PACS numbers: 25.75-q, 25.75.Gz. |
| format | Article |
| id | doaj-art-a48a866964c44c9b9a99bf717d2c2d89 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-a48a866964c44c9b9a99bf717d2c2d892025-08-20T03:38:13ZengWileyAdvances in High Energy Physics1687-73571687-73652013-01-01201310.1155/2013/836071836071Entropy Analysis in Relativistic Heavy-Ion CollisionsShakeel Ahmad0A. Ahmad1Anuj Chandra2M. Zafar3M. Irfan4Department of Physics, Aligarh Muslim University, Aligarh 202002, IndiaDepartment of Applied Physics, Aligarh Muslim University, Aligarh 202002, IndiaDepartment of Physics, Aligarh Muslim University, Aligarh 202002, IndiaDepartment of Physics, Aligarh Muslim University, Aligarh 202002, IndiaDepartment of Physics, Aligarh Muslim University, Aligarh 202002, IndiaEntropy creation in multiparticle system is investigated by analysing the experimental data on ion-ion collisions at AGS and SPS energies and the results thus obtained are compared with those predicted by multiphase transport and correlation-free Monte Carlo models. Entropies produced in limited- and full-phase space are observed to increase with increasing beam energy. The entropy values, normalized to the maximum rapidity and plotted against pseudorapidity (bin width also normalized to the maximum rapidity), are found to be energy independent, exhibiting a kind of entropy scaling. Such scaling is observed in the full phase space as well as in the regions confined to the forward or backward hemispheres. The findings also reveal that there exist strong correlations amongst the particles produced in the forward and backward hemispheres around the midrapidity. These correlations are found to be of short range in nature, and the contributions from the long-range correlations seem to be absent. PACS numbers: 25.75-q, 25.75.Gz.http://dx.doi.org/10.1155/2013/836071 |
| spellingShingle | Shakeel Ahmad A. Ahmad Anuj Chandra M. Zafar M. Irfan Entropy Analysis in Relativistic Heavy-Ion Collisions Advances in High Energy Physics |
| title | Entropy Analysis in Relativistic Heavy-Ion Collisions |
| title_full | Entropy Analysis in Relativistic Heavy-Ion Collisions |
| title_fullStr | Entropy Analysis in Relativistic Heavy-Ion Collisions |
| title_full_unstemmed | Entropy Analysis in Relativistic Heavy-Ion Collisions |
| title_short | Entropy Analysis in Relativistic Heavy-Ion Collisions |
| title_sort | entropy analysis in relativistic heavy ion collisions |
| url | http://dx.doi.org/10.1155/2013/836071 |
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