Particle species and energy dependencies of freeze-out parameters in high-energy proton-proton collisions

Abstract

We used blast wave model with Tsallis statistics to analyze the experimental data measured by ALICE Collaboration in proton-proton collisions at Large Hadron Collider and extracted the related parameters (kinetic freeze-out temperature, transverse flow velocity and kinetic freeze-out volume of emission source) from transverse momentum spectra of the particles. We found that the kinetic freeze-out temperature and kinetic freeze-out volume are mass dependent. The former increase while the latter decrease with the particle mass which is the evidence of a mass as well as volume differential kinetic freeze-out scenario. Furthermore we extracted the mean transverse momentum and initial temperature by an indirect method and observed that they increase with mass of the particles. All the above discussed parameters are observed to increase with energy. Triton ($t$), hyper-triton (${}_{\bar{\Lambda }}^{3}H$) and helion (${}^{3}He$) and their anti-matter are observed to freeze-out at the same time due to isospin symmetry.

arXiv comment13 pages, 5 figures, 1 table

References in corpus (45)

• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Identified Charged Particle Spectra and Yields in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions
• Evidence for collectivity in pp collisions at the LHC
• Identified particle distributions in pp and Au+Au collisions at sqrt{s_NN}=200 GeV
• Production of pions, kaons and protons in pp collisions at $\sqrt{s}=900$ GeV with ALICE at the LHC
• Observable implications of geometrical and dynamical aspects of freeze-out in heavy ion collisions
• Production of charged pions, kaons and protons at large transverse momenta in pp and Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Spectra and radial flow at RHIC with Tsallis statistics in a Blast-Wave description
• Transverse momentum spectra of charged particles in proton-proton collisions at $\sqrt{s}=900$ GeV with ALICE at the LHC
• Strange Particle Production in pp Collisions at sqrt(s) = 0.9 and 7 TeV
• Production of $\Sigma (1385{)}^{\pm }$ and $\Xi (1530{)}^0$ in proton-proton collisions at $\sqrt{s}=$ 7 TeV
• Measurement of pion, kaon and proton production in proton-proton collisions at $\sqrt{s}=7$ TeV
• Production of K${}^{\ast }$(892)${}^0$ and $\varphi$(1020) in pp collisions at $\sqrt{s}=7$ TeV
• Production of deuterons, tritons, ${}^3$He nuclei and their anti-nuclei in pp collisions at $\sqrt{\text{s}}$ = 0.9, 2.76 and 7 TeV
• Inclusive J/psi production in pp collisions at sqrt(s) = 2.76 TeV
• Examine the species and beam-energy dependence of particle spectra using Tsallis Statistics
• Heavy flavour decay muon production at forward rapidity in proton-proton collisions at $\sqrt{s}=7$ TeV
• Production of Light Nuclei in Heavy Ion Collisions Within Multiple Freezeout Scenario
• Statistical Origin of Constituent-Quark Scaling in the QGP hadronization
• Kinetic freeze-out temperatures in central and peripheral collisions: Which one is larger?
• Light vector meson production in pp collisions at $\sqrt{s}$ = 7 TeV
• The Freezeout Hypersurface at LHC from particle spectra: Flavor and Centrality Dependence
• An evidence of triple kinetic freezeout scenario observed in all centrality intervals in Cu-Cu, Au-Au and Pb-Pb collisions at high energies
• Initial, effective, and kinetic freeze-out temperatures from transverse momentum spectra in high energy proton(deuteron)-nucleus and nucleus-nucleus collisions
• De-Confinement in small systems: Clustering of color sources in high multiplicity $\bar{p}$p collisions at $\sqrt{s}$= 1.8 TeV
• Energy scan/dependence of kinetic freeze-out scenarios of multi-strange and other identified particles in central nucleus-nucleus collisions
• Analyses of whole transverse momentum distributions in $p\bar{p}$ and $pp$ collisions by using a modified version of Hagedorn's formula
• De-Confinement in high multiplicity proton-proton collisions at LHC energies
• Energy and Centrality Dependent Study of Deconfinement Phase Transition in a Color String Percolation Approach at RHIC Energies
• Excitation Functions of Tsallis-like Parameters in High-Energy Nucleus-Nucleus Collisions
• Identified particle spectra in Pb-Pb, Xe-Xe and p-Pb collisions with Tsallis blast-wave model
• K*0 and phi Meson Production in Proton-Nucleus Interactions at sqrt(s) = 41.6 GeV
• Centrality dependence of kinetic freeze-out temperature and transverse flow velocity in high energy nuclear collisions
• Energy dependence of $\varphi$(1020) production at mid-rapidity in pp collisions with ALICE at the LHC
• Event activity dependence of inclusive J/ψ production in p-Pb collisions at $\sqrt{s_{NN}}$ = 5.02 TeV with ALICE at the LHC
• Vector meson production in pp collisions at $\sqrt{s}=7\mathrm{TeV}$, measured with the ALICE detector
• Multiplicity dependence of strangeness and hadronic resonance production in pp and p-Pb collisions with ALICE at the LHC
• $\varphi$-meson production at forward rapidity in p-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV and in pp collisions at $\sqrt{s}$ = 2.76 TeV
• Study of kinetic freeze-out parameters as function of rapidity in pp collisions at CERN SPS energies
• Initial and final state temperatures of antiproton emission sources in high energy collisions
• Study of Dependence of Kinetic Freezeout Temperature on the Production Cross Section of Particles in Various Centrality Intervals in Au Au and Pb Pb Collisions at High Energies
• Dependence of temperatures and kinetic freeze-out volume on centrality in Au-Au and Pb-Pb collisions at high energy
• Multi-strange baryon production in Pb-Pb and pp collisions at $\sqrt{s_{NN}}$ = 2.76 TeV with the ALICE experiment at the LHC
• Light (anti-)nuclei and (anti-)hypertriton production in $pp$ collisions at $\sqrt{s}=0.90,2.76$ and $7$ TeV

Cited by in corpus (1)

• Multiplicity dependence of the freezeout parameters in high energy hadron-hadron collisions