Properties of the particle distribution in Pb–Pb collisions at sNN=5.02 TeV and sNN=2.76 TeV
Properties of the particle distribution in high energy heavy-ion collisions are important for understanding the particle production. In Tsallis statistics with a multisource production, we study the transverse momentum spectra of D0, D+, D*+, Ds+, J/ψ in Pb–Pb collisions at sNN = 5.02 TeV and charge...
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2023-09-01
|
| Series: | Frontiers in Physics |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fphy.2023.1257937/full |
| _version_ | 1797687119650488320 |
|---|---|
| author | Yan-Feng Geng Yan-Feng Geng Bao-Chun Li Bao-Chun Li |
| author_facet | Yan-Feng Geng Yan-Feng Geng Bao-Chun Li Bao-Chun Li |
| author_sort | Yan-Feng Geng |
| collection | DOAJ |
| description | Properties of the particle distribution in high energy heavy-ion collisions are important for understanding the particle production. In Tsallis statistics with a multisource production, we study the transverse momentum spectra of D0, D+, D*+, Ds+, J/ψ in Pb–Pb collisions at sNN = 5.02 TeV and charged particles in Pb–Pb collisions at sNN = 2.76 TeV. A good agreement can be observed between the results obtained in the model and the experimental results of ALICE and CMS collaboration. The nuclear modification factor RAA is reproduced. Properties reflected in the multiparticle system are discussed by the parameters provided in the improved model. It is found that the temperature T and the tft/τ increase with the centrality for the same particle due to the excitation degree of the multiparticle system. The non-equilibrium degree at sNN = 5.02 TeV is larger than that at sNN = 2.76 TeV. It shows that the system at the larger collision energy deviates farther from the equilibrium state. |
| first_indexed | 2024-03-12T01:14:40Z |
| format | Article |
| id | doaj.art-69249ef1da1a430b82dc323404842df6 |
| institution | Directory Open Access Journal |
| issn | 2296-424X |
| language | English |
| last_indexed | 2024-03-12T01:14:40Z |
| publishDate | 2023-09-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Physics |
| spelling | doaj.art-69249ef1da1a430b82dc323404842df62023-09-13T19:33:59ZengFrontiers Media S.A.Frontiers in Physics2296-424X2023-09-011110.3389/fphy.2023.12579371257937Properties of the particle distribution in Pb–Pb collisions at sNN=5.02 TeV and sNN=2.76 TeVYan-Feng Geng0Yan-Feng Geng1Bao-Chun Li2Bao-Chun Li3College of Physics and Electronics Engineering, Shanxi University, Taiyuan, Shanxi, ChinaCollaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, ChinaCollege of Physics and Electronics Engineering, Shanxi University, Taiyuan, Shanxi, ChinaCollaborative Innovation Center of Extreme Optics, Shanxi University, Taiyuan, Shanxi, ChinaProperties of the particle distribution in high energy heavy-ion collisions are important for understanding the particle production. In Tsallis statistics with a multisource production, we study the transverse momentum spectra of D0, D+, D*+, Ds+, J/ψ in Pb–Pb collisions at sNN = 5.02 TeV and charged particles in Pb–Pb collisions at sNN = 2.76 TeV. A good agreement can be observed between the results obtained in the model and the experimental results of ALICE and CMS collaboration. The nuclear modification factor RAA is reproduced. Properties reflected in the multiparticle system are discussed by the parameters provided in the improved model. It is found that the temperature T and the tft/τ increase with the centrality for the same particle due to the excitation degree of the multiparticle system. The non-equilibrium degree at sNN = 5.02 TeV is larger than that at sNN = 2.76 TeV. It shows that the system at the larger collision energy deviates farther from the equilibrium state.https://www.frontiersin.org/articles/10.3389/fphy.2023.1257937/fullTsallis statisticsmultisource productiontransverse momentum spectranuclear modification factorhigh-energy heavy-ion collisions |
| spellingShingle | Yan-Feng Geng Yan-Feng Geng Bao-Chun Li Bao-Chun Li Properties of the particle distribution in Pb–Pb collisions at sNN=5.02 TeV and sNN=2.76 TeV Frontiers in Physics Tsallis statistics multisource production transverse momentum spectra nuclear modification factor high-energy heavy-ion collisions |
| title | Properties of the particle distribution in Pb–Pb collisions at sNN=5.02 TeV and sNN=2.76 TeV |
| title_full | Properties of the particle distribution in Pb–Pb collisions at sNN=5.02 TeV and sNN=2.76 TeV |
| title_fullStr | Properties of the particle distribution in Pb–Pb collisions at sNN=5.02 TeV and sNN=2.76 TeV |
| title_full_unstemmed | Properties of the particle distribution in Pb–Pb collisions at sNN=5.02 TeV and sNN=2.76 TeV |
| title_short | Properties of the particle distribution in Pb–Pb collisions at sNN=5.02 TeV and sNN=2.76 TeV |
| title_sort | properties of the particle distribution in pb pb collisions at snn 5 02 tev and snn 2 76 tev |
| topic | Tsallis statistics multisource production transverse momentum spectra nuclear modification factor high-energy heavy-ion collisions |
| url | https://www.frontiersin.org/articles/10.3389/fphy.2023.1257937/full |
| work_keys_str_mv | AT yanfenggeng propertiesoftheparticledistributioninpbpbcollisionsatsnn502tevandsnn276tev AT yanfenggeng propertiesoftheparticledistributioninpbpbcollisionsatsnn502tevandsnn276tev AT baochunli propertiesoftheparticledistributioninpbpbcollisionsatsnn502tevandsnn276tev AT baochunli propertiesoftheparticledistributioninpbpbcollisionsatsnn502tevandsnn276tev |