2012/02/25 by M. Rybczyński, Maciej Rybczyński, Wojciech Florkowski +2 · 1 citation
Physics and Astronomy · #Antiproton #Hadron #High-Energy Particle Collisions Research #Hypersurface #Large Hadron Collider #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Proton #Quantum Chromodynamics and Particle Interactions #Spectral line #nucl-th
paper · pdf · doi:10.1103/physrevc.85.054907
published as Phys.Rev. C85 (2012) 054907 · 9 pages, 10 figures
arxiv created 2012/02/25 · openalex publication_date 2012/05/10 · arxiv updated 2014/03/03 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The single-freeze-out model with parametrized hypersurface and flow geometry is employed to analyze the transverse-momentum spectra of hadrons produced in the Pb+Pb collisions at the collision energy of √sNN=2.76 TeV at the CERN Large Hadron Collider (LHC). With the notable exception for protons and antiprotons, we find a very good agreement between the model results and the data for the measured hadron species. The additional analysis of the Hanbury-Brown--Twiss (HBT) radii of pions helps us to select, from several different types of freeze-out studied in this work, the most realistic form of the freeze-out hypersurface. We find that the discrepancy ratio between the model and experiment for the proton and antiproton spectra depends on pT, dropping from 2 in the soft region to 1 around pT=1.5 GeV.