The QCD Phase Diagram from Statistical Model Analysis

Abstract

In high multiplicity nucleus-nucleus collisions baryon-antibaryon annihilation and regeneration occur during the final hadronic expansion phase, thus distorting the initial equilibrium multiplicity ratios. We quantify the modifications employing the hybrid UrQMD transport model and apply them to the grand canonical partition functions of the Statistical Hadronization Model(SHM). We analyze minimum bias and central Pb+Pb collision data at SPS and LHC energy. We explain the Pion to Proton ratio puzzle. We also reproduce the deuteron to proton ratio at LHC energy by the SHM, and by UrQMD after attaching a phase space coalescence process. We discuss the resulting (T,${\mu }_B$) diagram.

arXiv commentQuark Matter 2018 proceedings. Talk presented by Reinhard Stock. Accepted version

References in corpus (22)

• Enhanced production of multi-strange hadrons in high-multiplicity proton-proton collisions
• Production of light nuclei, hypernuclei and their antiparticles in relativistic nuclear collisions
• Production of light nuclei and anti-nuclei in pp and Pb-Pb collisions at LHC energies
• The phase boundary for the chiral transition in (2+1)-flavor QCD at small values of the chemical potential
• Confronting LHC data with the statistical hadronization model
• Is there a flavor hierarchy in the deconfinement transition of QCD?
• Hadron Formation in Relativistic Nuclear Collisions and the QCD Phase Diagram
• Curvature of the chiral pseudo-critical line in QCD: continuum extrapolated results
• 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
• Deuteron production from phase-space coalescence in the UrQMD approach
• Centrality dependence of hadronization and chemical freeze-out conditions in heavy ion collisions at \sqrt s_{NN} = 2.76 TeV
• Hadronization conditions in relativistic nuclear collisions and the QCD pseudo-critical line
• Production of light nuclei in the thermal and coalescence models
• Curvature of the chiral pseudo-critical line in QCD
• Hadronization and Hadronic Freeze-Out in Relativistic Nuclear Collisions
• Space, Time and Color in Hadron Production Via e+e- -> Z0 and e+e- -> W+W-
• The curvature of the freeze-out line in heavy ion collisions
• Photon and dilepton production at the Facility for Antiproton and Ion Research and the beam energy scan program at the Relativistic Heavy-Ion Collider using coarse-grained microscopic transport simulations
• Conserved charge fluctuations are not conserved during the hadronic phase
• The QCD confinement transition: hadron formation
• How much does the hadronic phase contribute to the observed anisotropic flow at the LHC?
• Satellite-Mounted Light Sources as Photometric Calibration Standards

Cited by in corpus (5)

• Production of charged pions, kaons and (anti-)protons in Pb-Pb and inelastic pp collisions at $\sqrt{s_{\mathrm{NN}}}$ = 5.02 TeV
• A Comparison of p-p, p-Pb, Pb-Pb Collisions in the Thermal Model: Multiplicity Dependence of Thermal Parameters
• Deuteron yields from LHC: Continuum correlations and in-medium effects
• Centrality dependence of proton and light nuclei yields as a consequence of baryon annihilation in the hadronic phase
• Effects of fluctuations and color-neutrality in a finite volume