Can Tsallis Distribution Fit All the Particle Spectra Produced at RHIC and LHC?
The Tsallis distribution has been tested to fit all the particle spectra at mid-rapidity from central events produced in d + Au, Cu + Cu, and Au + Au collisions at RHIC and p + Pb, Pb + Pb collisions at LHC. Even though there are strong medium effects in Cu + Cu and Au + Au collisions, the results s...
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2015/180491 |
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| _version_ | 1849690462994038784 |
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| author | H. Zheng Lilin Zhu |
| author_facet | H. Zheng Lilin Zhu |
| author_sort | H. Zheng |
| collection | DOAJ |
| description | The Tsallis distribution has been tested to fit all the particle spectra at mid-rapidity from central events produced in d + Au, Cu + Cu, and Au + Au collisions at RHIC and p + Pb, Pb + Pb collisions at LHC. Even though there are strong medium effects in Cu + Cu and Au + Au collisions, the results show that the Tsallis distribution can be used to fit most of particle spectra in the collisions studied except in Au + Au collisions where some deviations are seen for proton and Λ at low pT. In addition, as the Tsallis distribution can only fit part of the particle spectra produced in Pb + Pb collisions where pT is up to 20 GeV/c, a new formula with one more fitting degree of freedom is proposed in order to reproduce the entire pT region. |
| format | Article |
| id | doaj-art-ec0087daccda4d4688b0817c398e3096 |
| institution | DOAJ |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-ec0087daccda4d4688b0817c398e30962025-08-20T03:21:18ZengWileyAdvances in High Energy Physics1687-73571687-73652015-01-01201510.1155/2015/180491180491Can Tsallis Distribution Fit All the Particle Spectra Produced at RHIC and LHC?H. Zheng0Lilin Zhu1INFN, Laboratori Nazionali del Sud, Via Santa Sofia 62, 95123 Catania, ItalyDepartment of Physics, Sichuan University, Chengdu 610064, ChinaThe Tsallis distribution has been tested to fit all the particle spectra at mid-rapidity from central events produced in d + Au, Cu + Cu, and Au + Au collisions at RHIC and p + Pb, Pb + Pb collisions at LHC. Even though there are strong medium effects in Cu + Cu and Au + Au collisions, the results show that the Tsallis distribution can be used to fit most of particle spectra in the collisions studied except in Au + Au collisions where some deviations are seen for proton and Λ at low pT. In addition, as the Tsallis distribution can only fit part of the particle spectra produced in Pb + Pb collisions where pT is up to 20 GeV/c, a new formula with one more fitting degree of freedom is proposed in order to reproduce the entire pT region.http://dx.doi.org/10.1155/2015/180491 |
| spellingShingle | H. Zheng Lilin Zhu Can Tsallis Distribution Fit All the Particle Spectra Produced at RHIC and LHC? Advances in High Energy Physics |
| title | Can Tsallis Distribution Fit All the Particle Spectra Produced at RHIC and LHC? |
| title_full | Can Tsallis Distribution Fit All the Particle Spectra Produced at RHIC and LHC? |
| title_fullStr | Can Tsallis Distribution Fit All the Particle Spectra Produced at RHIC and LHC? |
| title_full_unstemmed | Can Tsallis Distribution Fit All the Particle Spectra Produced at RHIC and LHC? |
| title_short | Can Tsallis Distribution Fit All the Particle Spectra Produced at RHIC and LHC? |
| title_sort | can tsallis distribution fit all the particle spectra produced at rhic and lhc |
| url | http://dx.doi.org/10.1155/2015/180491 |
| work_keys_str_mv | AT hzheng cantsallisdistributionfitalltheparticlespectraproducedatrhicandlhc AT lilinzhu cantsallisdistributionfitalltheparticlespectraproducedatrhicandlhc |