Centrality Evolution of Transverse Momentum Spectra of Identified Light-Flavor Hadrons in p+Pb Collisions at \(\sqrt{s_{nn}}\) = 5.02 TeV at the LHC Within a Two-Component Model
Using the two-component Tsallis-Hagedorn Model with Transverse Flow (THMTF), this study analyzes centrality dependencies of midrapidity transverse momentum (pT) spectra for identified light-flavor hadrons in asymmetric p+Pb collisions at Snn = 5.02 TeV, comparing them with symmetric Pb+Pb collision data at Snn = 2.76 and 5.02 TeV at the LHC. The analysis successfully describes ALICE experimental data up to pT = 20 GeV/c across seven multiplicity classes in p+Pb collisions, estimating that collective flow emerges at ⟨Npart⟩ ≈ 4.0 ± 0.5 along with simultaneous transitioning of kinetic freeze-out temperature to a nearly plateau region. The kinetic freeze-out temperature parameter shows distinct, system-dependent behavior before stabilization with an increase in ⟨ Npart⟩ in p+Pb and Pb+Pb collisions at the LHC. Furthermore, the findings suggest that collective flow and particle production correlate with increased thermalization, with spectral analysis indicating different dynamics at hard pT region between p+Pb and Pb+Pb collision systems.
Authors
- E. Bondar
- Sayora Ibraimova (ORCID: https://orcid.org/0000-0002-6652-9252)
- Azizjon Tokhirov
- F. H. Liu (ORCID: https://orcid.org/0000-0002-2261-6899)
- Anastasiya Fedosimova
- Shokhida Khudoyberdieva
- Kobil Musaev
- Khusniddin Olimov
- Igor Lebedev
Institutions
- Academy of Sciences Republic of Uzbekistan (UZ)
- Shanxi University (CN)
- Satbayev University (KZ)
- National University of Science and Technology (ZW)
- Institute of Theoretical Physics (CN)
- Institute of Physics and Technology (KZ)
- National Nuclear Center of the Republic of Kazakhstan (KZ)
Publication Details
- Journal
- Universe
- Published
- 2026-08-28
- DOI
- https://doi.org/10.3390/universe12090261
- Primary Topic
- High-Energy Particle Collisions Research
- Type
- article
- Field-Weighted Citation Impact
- 0.00