Introduces a new thermodynamic state function enabling computation of high-order temperature fluctuations in hot QCD matter from heavy-ion collision data, predicting strong suppression and negative skewness in the QGP phase.
Signatures of the tricritical point in QCD
6 Pith papers cite this work. Polarity classification is still indexing.
abstract
Several approaches to QCD with two massless quarks at finite temperature T and baryon chemical potential mu suggest the existence of a tricritical point on the boundary of the phase with spontaneously broken chiral symmetry. In QCD with massive quarks there is then a critical point at the end of a first order transition line. We discuss possible experimental signatures of this point, which provide information about its location and properties. We propose a combination of event-by-event observables, including suppressed fluctuations in T and mu and, simultaneously, enhanced fluctuations in the multiplicity of soft pions.
verdicts
UNVERDICTED 6representative citing papers
Landau singularity analysis of two-point functions in Schwinger-Keldysh EFTs identifies nonlinear relaxation modes that produce power-law late-time decay when gapless modes are present.
Deterministic confluent equations are derived for three-point correlations of non-Gaussian fluctuations in relativistic stochastic hydrodynamics, including fluctuating velocity, using a covariant formalism in the average local Landau frame.
A thermodynamically consistent neural-network equation of state for QCD matter at finite temperature and conserved charges that matches known low-density results and extrapolates to high baryon densities for use in relativistic heavy-ion simulations.
A quark-meson model with lattice-fitted temperature-dependent quark masses and anomalous magnetic moments reproduces the magnetic susceptibility of hot hadronic matter up to the QCD crossover, showing quarks are active below 120 MeV.
Soft modes linked to the QCD critical point and two-flavor color superconductivity in the NJL model produce a pseudogap above Tc and enhance electric conductivity and dilepton rates relevant to heavy-ion collisions.
citing papers explorer
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High-order fluctuations of temperature in hot QCD matter
Introduces a new thermodynamic state function enabling computation of high-order temperature fluctuations in hot QCD matter from heavy-ion collision data, predicting strong suppression and negative skewness in the QGP phase.
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Late-Time Relaxation from Landau Singularities
Landau singularity analysis of two-point functions in Schwinger-Keldysh EFTs identifies nonlinear relaxation modes that produce power-law late-time decay when gapless modes are present.
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Non-Gaussian fluctuations in relativistic hydrodynamics: Confluent equations for three-point correlations
Deterministic confluent equations are derived for three-point correlations of non-Gaussian fluctuations in relativistic stochastic hydrodynamics, including fluctuating velocity, using a covariant formalism in the average local Landau frame.
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Equation of State at High Baryon Densities from a Thermodynamically Informed Neural Network
A thermodynamically consistent neural-network equation of state for QCD matter at finite temperature and conserved charges that matches known low-density results and extrapolates to high baryon densities for use in relativistic heavy-ion simulations.
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Magnetic susceptibility of a hot hadronic medium and quark degrees of freedom near the QCD cross-over point
A quark-meson model with lattice-fitted temperature-dependent quark masses and anomalous magnetic moments reproduces the magnetic susceptibility of hot hadronic matter up to the QCD crossover, showing quarks are active below 120 MeV.
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Soft mode dynamics associated with QCD critical point and color superconductivity -- pseudogap, anomalous dilepton production and electric conductivity
Soft modes linked to the QCD critical point and two-flavor color superconductivity in the NJL model produce a pseudogap above Tc and enhance electric conductivity and dilepton rates relevant to heavy-ion collisions.