Centrality Evolution of Transverse Momentum Spectra of Identified Light-Flavor Hadrons in p+Pb Collisions at snn = 5.02 TeV at the LHC Within a Two-Component Model

Khusniddin K. Olimov, Anastasiya I. Fedosimova, F. H. Liu, Kobil A. Musaev, Igor A. Lebedev, Shokhida A. Khudoyberdieva, Azizjon Tokhirov, Sayora Ibraimova, Ekaterina A. Bondar

Universe, 2026

Full text Open access: Gold Metadata (CSL-JSON)
DOI 10.3390/universe12090261
Data confidence 70 medium
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

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.