Thermodynamic and transport properties in Au + Au collisions at RHIC energies from the clustering of color strings

Abstract

In this work, we have extracted the initial tempearture from the transverse momentum spectra of charged particles in $Au+Au$ collisions using STAR data at RHIC energies from $\sqrt{s_{NN}}$ = 7.7 to 200 GeV. The initial energy density ($\epsilon$), shear viscosity to entropy density ratio ($\eta /s$), trace anomaly ($\Delta$), the squared speed of sound ($C_s^2$), entropy density, and bulk viscosity to entropy density ratio ($\zeta /s$) are obtained and compared with the lattice QCD calculations for (2+1) flavor. The initial temperatures obtained are compared with various hadronization and chemical freeze-out temperatures. The analysis of the data shows that the deconfinement to confinement transition possibly takes place between $\sqrt{s_{NN}}$ = 11.5 and 19.6 GeV.

Same as published version in MPLA

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• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• The equation of state in (2+1)-flavor QCD
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• Percolation of color sources and critical temperature
• The phase structure of QCD
• Identified particle production and freeze-out properties in heavy-ion collisions at RHIC Beam Energy Scan program
• Percolation of Color Sources and the determination of the Equation of State of the Quark-Gluon Plasma (QGP) produced in central Au-Au collisions at \sqrt S_{NN}= 200 GeV
• Recent results on event-by-event fluctuations from the RHIC Beam Energy Scan program in the STAR experiment

Cited by in corpus (16)

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• Wiedemann-Franz Law For Hot QCD Matter in a Color String Percolation Scenario
• Holography of Low-Centrality Heavy Ion Collisions
• Anisotropy of magnetized quark matter
• Soft and hard scales of the transverse momentum distribution in the Color String Percolation Model
• Possible Formation of a Perfect Fluid in $pp$, $p$-Pb, Xe-Xe and Pb-Pb Collisions at the Large Hadron Collider Energies: A Color String Percolation Approach
• Jet Transport Coefficient at the Large Hadron Collider Energies in a Color String Percolation Approach
• Holographic Dual of The Weak Gravity Conjecture
• Understanding the QCD medium by the diffusion of charm quarks using a Color String Percolation Model
• Viscosity of non equilibrium hot $\&$ dense QCD drop formed at LHC
• The Effect of Vorticity on QGP Thermodynamics
• Jet Quenching in The Most Vortical Fluid: A Holographic Approach
• Structure of the medium formed in heavy ion collisions
• Complexity vs. Vorticity