Light particle and quark chemical potentials from negatively to positively charged particle yield ratios corrected by removing strong and weak decays

Abstract

The yield ratios of negatively to positively charged pions (${\pi }^{-}/{\pi }^{+}$), negatively to positively charged kaons ($K^{-}/K^{+}$), and anti-protons to protons ($\bar{p}/p$) produced in mid-rapidity interval in central gold-gold (Au-Au) collisions, central lead-lead (Pb-Pb) collisions, and inelastic (INEL) or non-single-diffractive (NSD) proton-proton ($pp$) collisions, as well as in forward rapidity region in INEL $pp$ collisions are analyzed in the present work. Over an energy range from a few GeV to above 10 TeV, the chemical potentials of light flavor particles (pion, kaon, and proton) and quarks (up, down, and strange quarks) are extracted from the mentioned yield ratios in which the contributions of strong decay from high-mass resonance and weak decay from heavy flavor hadrons are removed. Most energy dependent chemical potentials show the maximum at about 4 GeV, while the energy dependent yield ratios do not show such an extremum.

arXiv comment11 pages, 3 figures. Advances in High Energy Physics, accepted. arXiv admin note: text overlap with arXiv:1806.04309

References in corpus (35)

• Quark Gluon Plasma an Color Glass Condensate at RHIC? The perspective from the BRAHMS experiment
• Systematic Measurements of Identified Particle Spectra in pp, d+Au and Au+Au Collisions from STAR
• Hadron production in central nucleus-nucleus collisions at chemical freeze-out
• Identified Charged Particle Spectra and Yields in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Decoding the phase structure of QCD via particle production at high energy
• Centrality dependence of $\pi$, K, p production in Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV
• Comparison of Chemical Freeze-Out Criteria in Heavy-Ion Collisions
• Bulk Properties of the Medium Produced in Relativistic Heavy-Ion Collisions from the Beam Energy Scan Program
• Energy Dependence of Pion and Kaon Production in Central Pb+Pb Collisions
• Hadron production in Au-Au collisions at RHIC
• Energy and system size dependence of chemical freeze-out in relativistic nuclear collisions
• Identified particle distributions in pp and Au+Au collisions at sqrt{s_NN}=200 GeV
• Pion and kaon production in central Pb+Pb collisions at 20A and 30A GeV: Evidence for the onset of deconfinement
• Measurements of Strange Particle Production in $p+p$ Collisions at $\sqrt{s}$= 200 GeV
• Production of pions, kaons and protons in pp collisions at $\sqrt{s}=900$ GeV with ALICE at the LHC
• Centrality dependence of pi^[+/-], K^[+/-], p and p-bar production from sqrt(s_NN)=130 GeV Au + Au collisions at RHIC
• Identified particle production, azimuthal anisotropy, and interferometry measurements in Au+Au collisions at $\sqrt{s_{NN}}$ = 9.2 GeV
• Study of the inclusive production of charged pions, kaons, and protons in pp collisions at sqrt(s) = 0.9, 2.76, and 7 TeV
• Statistical hadronization of heavy quarks in ultra-relativistic nucleus-nucleus collisions
• Single Identified Hadron Spectra from sqrt(s_NN)=130 GeV Au+Au Collisions
• Charged Pion Production in 2 to 8 AGeV Central Au+Au Collisions
• An Excitation Function of K${}^{-}$ and K${}^{+}$ Production in Au+Au Reactions at the AGS
• Measurements of ${\pi }^{\pm }$, K${}^{\pm }$, p and $\bar{\text{p}}$ spectra in proton-proton interactions at 20, 31, 40, 80 and 158 GeV/c with the NA61/SHINE spectrometer at the CERN SPS
• The horn, the hadron mass spectrum and the QCD phase diagram - the statistical model of hadron production in central nucleus-nucleus collisions
• Longitudinal Flow of Protons from 2-8 AGeV Central Au+Au Collisions
• Measurement of charged pion, kaon, and proton production in proton-proton collisions at sqrt(s) = 13 TeV
• Production of Light Nuclei in Heavy Ion Collisions Within Multiple Freezeout Scenario
• An Evidence of Mass Dependent Differential Kinetic Freeze-out Scenario Observed in Pb-Pb Collisions at 2.76 TeV
• The Freezeout Hypersurface at LHC from particle spectra: Flavor and Centrality Dependence
• Centrality Dependence of Thermal Parameters in Heavy-Ion Collisions at CERN-SPS
• Particle decay from statistical thermal model in high energy nucleus-nucleus collision
• Sequential Strangeness Freeze-out
• On Extraction of Chemical Potentials of Quarks from Particle Transverse Momentum Spectra in High Energy Collisions
• Energy dependent chemical potentials of light particles and quarks from yield ratios of antiparticles to particles in high energy collisions
• Chemical potentials of light flavor quarks from yield ratios of negative to positive particles in Au+Au collisions at RHIC

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