Systematic investigation of the particle spectra in heavy-ion collisions at the Large Hadron Collider
| Pub type: | Article |
| Citation: | HuaZheng_MPLA_v35_p2050177 |
| Status: | Published |
| Journal: | Modern Physics Letters A |
| Volume: | 35 |
| Number: | 21 |
| Year: | 2020 |
| Month: | Jun |
| Pages: | 2050177 |
| Publisher: | World Scientific Pub Co Pte Lt |
| URL: | https://doi.org/10.1142%2Fs021... |
| DOI: | 10.1142/s0217732320501771 |
| Abstract: | We investigate the charged particle spectra produced in the heavy-ion collisions at nine centralities from different systems, i.e. Pb + Pb at p sNN = 2.76 TeV and 5.02 TeV as well as Xe + Xe at p sNN = 5.44 TeV, at Large Hadron Collider (LHC) using one empirical formula inspired by the stationary solution of the Fokker-Planck equation, dubbed as the generalized Fokker-Planck solution (GFPS). Our results show that the GFPS can reproduce the experimental particle spectrum up to transverse momentum pT about 45 GeV/c with the maximum discrepancy 30% covering 10 orders of magnitude. The discrepancy between the data and the results from the GFPS decreases to 15% when the maximum of the charged particle transverse momentum is cut to 20 GeV/c. We confirmed that the Tsallis distribution derived from the non-extensive statistics, which can reproduce the particle spectra produced in small collision systems, such as p + p, up to few hundreds GeV/c, can only apply to systematically study the particle spectra up to 8 GeV/c in A+A collisions at LHC, as pointed out in the study of identified particle spectra in Pb+Pb collisions at p sNN = 2:76 TeV. A brief discussion on GFPS is also given. |
| Month_val: | 6 |
| Sig contrib: | Hua Zheng, A. Bonasera |
| Authors: | |
| Added by: | [DGM] |
| Total mark: | 0 |
| | |
|
Notes
|
|
|
|
|
|
Topics
|
|
|
|
