The effects of the QCD critical point on the spectra and flow coefficients of hadrons

Abstract

The space-time evolution of the hot and dense fireball of quarks and gluons produced in ultra-relativistic heavy-ion collisions at non-zero baryonic chemical potential and temperature has been studied by using relativistic viscous causal hydrodynamics. For this purpose a numerical code has been developed to solve the relativistic viscous causal hydrodynamics in (3+1)-dimensions with the inclusion of QCD critical point (CP) through the equation of state and scaling behaviour of the transport coefficients. We have evaluated the transverse momentum spectra, directed and elliptic flow coefficients of pions and protons to comprehend the effect of CP on these observables by using this code. It is found that the integration over the entire space-time history of the fireball largely obliterates the effects of CP on the spectra and flow coefficients.

arXiv comment14 pages, 13 figures

References in corpus (35)

• The order of the quantum chromodynamics transition predicted by the standard model of particle physics
• Signatures of the Tricritical Point in QCD
• Critical point of QCD at finite T and μ, lattice results for physical quark masses
• The QCD phase diagram for small densities from imaginary chemical potential
• Lattice determination of the critical point of QCD at finite T and μ
• Non-Gaussian fluctuations near the QCD critical point
• On the Phase Diagram of QCD
• 3+1D hydrodynamic simulation of relativistic heavy-ion collisions
• The Phase Structure of the Polyakov--Quark-Meson Model
• Anisotropic transverse flow and the quark-hadron phase transition
• On the sign of kurtosis near the QCD critical point
• Search for the QCD Critical Point with Fluctuations of Conserved Quantities in Relativistic Heavy-Ion Collisions at RHIC : An Overview
• Centrality determination of Pb-Pb collisions at $\sqrt{s_{\mathrm{NN}}}$ = 2.76 TeV with ALICE
• The phase structure of the Polyakov--quark-meson model beyond mean field
• Symmetry constraints on generalizations of Bjorken flow
• The QCD phase diagram at nonzero quark density
• A holographic critical point
• Benchmarks for the Forward Observables at RHIC, the Tevatron-run II and the LHC
• A 3+1 dimensional viscous hydrodynamic code for relativistic heavy ion collisions
• Hydro+: hydrodynamics with parametric slowing down and fluctuations near the critical point
• Particlization in hybrid models
• Transport Coefficients of Bulk Viscous Pressure in the 14-moment approximation
• Net baryon diffusion in fluid dynamic simulations of relativistic heavy-ion collisions
• Relativistic Hydrodynamics for Heavy--Ion Collisions -- II. Compression of Nuclear Matter and the Phase Transition to the Quark--Gluon Plasma
• A collision geometry-based 3D initial condition for relativistic heavy-ion collisions
• Hydro+ in Action: Understanding the Out-of-Equilibrium Dynamics Near a Critical Point in the QCD Phase Diagram
• Future Physics Perspectives on the Equation of State from Heavy Ion Collisions to Neutron Stars
• Phenomenological Consequences of Enhanced Bulk Viscosity Near the QCD Critical Point
• Freezing Out Fluctuations in Hydro+ Near the QCD Critical Point
• Searching for the QCD critical point via the rapidity dependence of cumulants
• Quartic cumulant of baryon number in the presence of QCD critical point
• Critical lensing and kurtosis near a critical point in the QCD phase diagram in and out-of-equilibrium
• QCD Critical Point: The Race is On
• Hydrodynamics and critical slowing down
• QCD phase diagram using PNJL model with eight-quark interactions

Cited by in corpus (2)

• Suppression of thermal vorticity as an indicator of QCD critical point
• Spin Polarization of $\Lambda$ hyperons from Dissipative Spin Hydrodynamics