A New Two-Component Model for Hadron Production in Heavy-Ion Collisions
Using the experimental data from the ALICE program on the centrality dependence of the transverse momentum (pT) spectra in Pb+Pb collisions at sNN=2.76 TeV, we show that the double-Tsallis distribution and the generalized Fokker-Planck (FP) solution cannot describe the spectra of pions, kaons, and p...
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Advances in High Energy Physics |
| Online Access: | http://dx.doi.org/10.1155/2017/6708581 |
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| author | Xuejiao Yin LiLin Zhu Hua Zheng |
| author_facet | Xuejiao Yin LiLin Zhu Hua Zheng |
| author_sort | Xuejiao Yin |
| collection | DOAJ |
| description | Using the experimental data from the ALICE program on the centrality dependence of the transverse momentum (pT) spectra in Pb+Pb collisions at sNN=2.76 TeV, we show that the double-Tsallis distribution and the generalized Fokker-Planck (FP) solution cannot describe the spectra of pions, kaons, and protons from central to peripheral collisions in the entire pT region, simultaneously. Hence, a new two-component distribution, which is a hydrodynamic extension of the generalized FP solution accounting for the collective motion effect in heavy-ion collisions, is proposed in order to reproduce all the identified particle spectra. Our results suggest that the particle production dynamics may be different for different particles, especially at very low pT region. |
| format | Article |
| id | doaj-art-14849f80f6e74184b35633eda460f599 |
| institution | Kabale University |
| issn | 1687-7357 1687-7365 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in High Energy Physics |
| spelling | doaj-art-14849f80f6e74184b35633eda460f5992025-02-03T06:01:29ZengWileyAdvances in High Energy Physics1687-73571687-73652017-01-01201710.1155/2017/67085816708581A New Two-Component Model for Hadron Production in Heavy-Ion CollisionsXuejiao Yin0LiLin Zhu1Hua Zheng2College of Physical Science and Technology, Sichuan University, Chengdu 610064, ChinaCollege of Physical Science and Technology, Sichuan University, Chengdu 610064, ChinaLaboratori Nazionali del Sud, INFN, Via Santa Sofia 62, 95123 Catania, ItalyUsing the experimental data from the ALICE program on the centrality dependence of the transverse momentum (pT) spectra in Pb+Pb collisions at sNN=2.76 TeV, we show that the double-Tsallis distribution and the generalized Fokker-Planck (FP) solution cannot describe the spectra of pions, kaons, and protons from central to peripheral collisions in the entire pT region, simultaneously. Hence, a new two-component distribution, which is a hydrodynamic extension of the generalized FP solution accounting for the collective motion effect in heavy-ion collisions, is proposed in order to reproduce all the identified particle spectra. Our results suggest that the particle production dynamics may be different for different particles, especially at very low pT region.http://dx.doi.org/10.1155/2017/6708581 |
| spellingShingle | Xuejiao Yin LiLin Zhu Hua Zheng A New Two-Component Model for Hadron Production in Heavy-Ion Collisions Advances in High Energy Physics |
| title | A New Two-Component Model for Hadron Production in Heavy-Ion Collisions |
| title_full | A New Two-Component Model for Hadron Production in Heavy-Ion Collisions |
| title_fullStr | A New Two-Component Model for Hadron Production in Heavy-Ion Collisions |
| title_full_unstemmed | A New Two-Component Model for Hadron Production in Heavy-Ion Collisions |
| title_short | A New Two-Component Model for Hadron Production in Heavy-Ion Collisions |
| title_sort | new two component model for hadron production in heavy ion collisions |
| url | http://dx.doi.org/10.1155/2017/6708581 |
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