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Title: Baryon transport and the QCD critical point

Journal Article · · Physical Review C

Fireballs created in relativistic heavy-ion collisions at different beam energies have been argued to follow different trajectories in the QCD phase diagram in which the QCD critical point serves as a landmark. Using a (1+1)-dimensional model setting with transverse homogeneity, we study the complexities introduced by the fact that the evolution history of each fireball cannot be characterized by a single trajectory but rather covers an entire swath of the phase diagram, with the finally emitted hadron spectra integrating over contributions from many different trajectories. Studying the phase diagram trajectories of fluid cells at different space-time rapidities, we explore how baryon diffusion shuffles them around, and how they are affected by critical dynamics near the QCD critical point. We find a striking insensitivity of baryon diffusion to critical effects. Its origins are analyzed and possible implications discussed.

Research Organization:
The Ohio State Univ., Columbus, OH (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP); USDOE Office of Science (SC), Nuclear Physics; National Science Foundation (NSF)
Grant/Contract Number:
SC0004286; ACI-1550223
OSTI ID:
1835170
Alternate ID(s):
OSTI ID: 1979842
Journal Information:
Physical Review C, Journal Name: Physical Review C Vol. 104 Journal Issue: 6; ISSN 2469-9985
Publisher:
American Physical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

References (111)

Hydrodynamic fluctuations and dissipation in an integrated dynamical model journal December 2016
Recent development of hydrodynamic modeling in heavy-ion collisions journal December 2020
(3+1)-dimensional dissipative relativistic fluid dynamics at non-zero net baryon density journal June 2020
Dynamical initialization and hydrodynamic modeling of relativistic heavy-ion collisions journal February 2019
Equation of state, radial flow, and freeze-out in high energy heavy ion collisions journal April 1998
Transits of the QCD critical point journal October 2019
Proton-Number Fluctuation as a Signal of the QCD Critical End Point journal September 2003
Hydrodynamics of R-charged black holes journal March 2006
Hydrodynamic fluctuations of entropy in one-dimensionally expanding system journal April 2019
QCD equation of state to O ( μ B 6 ) from lattice QCD journal March 2017
Erratum: Derivation of transient relativistic fluid dynamics from the Boltzmann equation [Phys. Rev. D 85 , 114047 (2012)] journal February 2015
Diffusion processes involving multiple conserved charges: A study from kinetic theory and implications to the fluid-dynamical modeling of heavy ion collisions journal April 2020
Equation of state in ( 2 + 1 )-flavor QCD journal November 2014
A hybrid approach to relativistic heavy-ion collisions at the RHIC BES energies journal November 2017
Heavy Ion Collisions: The Big Picture and the Big Questions journal October 2018
Stochastic hydrodynamics and long time tails of an expanding conformal charged fluid journal May 2019
Energy loss, equilibration, and thermodynamics of a baryon rich strongly coupled quark-gluon plasma journal April 2016
Transient relativistic thermodynamics and kinetic theory journal April 1979
Dynamically integrated transport approach for heavy-ion collisions at high baryon density journal August 2018
Effect of bulk viscosity on elliptic flow near the QCD phase transition journal December 2009
Spinodal Decomposition during the Hadronization Stage at RHIC? journal March 2004
Hydrodynamics of fluids near a critical point journal January 1978
Hydrodynamic Fluctuations in Relativistic Heavy-Ion Collisions journal February 2019
Phase diagram of QCD journal September 1998
Universality of the critical point mapping between Ising model and QCD at small quark mass journal September 2019
Radius of convergence in lattice QCD at finite μ B with rooted staggered fermions journal April 2020
Dynamical net-proton fluctuations near a QCD critical point journal February 2016
Diffusive dynamics of critical fluctuations near the QCD critical point journal June 2019
QCD equation of state at finite chemical potentials for relativistic nuclear collisions journal March 2021
Collective Flow and Viscosity in Relativistic Heavy-Ion Collisions journal October 2013
Evolution of fluctuations near QCD critical point journal March 2010
Strangeness-neutral equation of state for QCD with a critical point journal June 2021
Phenomenological consequences of enhanced bulk viscosity near the QCD critical point journal March 2017
The QCD equation of state from the lattice journal May 2013
Nuclear Stopping in A u + A u Collisions at s N N = 200 G e V journal August 2004
Nonmonotonic Energy Dependence of Net-Proton Number Fluctuations journal March 2021
Hydrodynamical evolution near the QCD critical end point journal April 2005
Longitudinal dynamics of high baryon density matter in high-energy heavy-ion collisions journal December 2018
Particlization in hybrid models journal November 2012
The phase diagram of dense QCD journal December 2010
Search for the QCD critical point with fluctuations of conserved quantities in relativistic heavy-ion collisions at RHIC: an overview journal July 2017
Dynamical initial-state model for relativistic heavy-ion collisions journal February 2018
Lattice QCD and heavy ion collisions: a review of recent progress journal July 2018
Universal properties of bulk viscosity near the QCD phase transition journal May 2008
Modified equilibrium distributions for Cooper-Frye particlization journal June 2021
Non-Gaussian Fluctuations near the QCD Critical Point journal January 2009
Real-time evolution of non-Gaussian cumulants in the QCD critical regime journal September 2015
Hydrodynamics with parametric slowing down and fluctuations near the critical point journal August 2018
Kinetic regime of hydrodynamic fluctuations and long time tails for a Bjorken expansion journal January 2017
Signatures of the Tricritical Point in QCD journal November 1998
Mapping the phases of quantum chromodynamics with beam energy scan journal April 2020
Bayesian analysis of heavy ion collisions with the heavy ion computational framework Trajectum journal May 2021
Searching for the QCD critical point via the rapidity dependence of cumulants journal December 2018
Multisystem Bayesian constraints on the transport coefficients of QCD matter journal May 2021
Strange matter lumps in the early Universe journal October 1994
Entropy production and reheating at the chiral phase transition journal March 2019
A Study of the Properties of the QCD Phase Diagram in High-Energy Nuclear Collisions journal April 2020
Universality driven analytic structure of the QCD crossover: Radius of convergence in the baryon chemical potential journal April 2021
Equation of state and QCD transition at finite temperature journal July 2009
Thermal phenomenology of hadrons from 200 A GeV S+S collisions journal November 1993
Quartic cumulant of baryon number in the presence of a QCD critical point journal March 2021
Sign of Kurtosis near the QCD Critical Point journal July 2011
Event-by-event fluctuations in heavy ion collisions and the QCD critical point journal November 1999
Hybrid model with dynamical sources for heavy-ion collisions at BES energies journal February 2019
The QCD equation of state with dynamical quarks journal November 2010
Transport Coefficients of Hadronic Matter Near T c journal October 2009
Studying QGP with flow: A theory overview journal January 2021
QCD equation of state matched to lattice data and exhibiting a critical point singularity journal March 2020
Fluctuation dynamics near the QCD critical point journal November 2020
Linear plane waves in dissipative relativistic fluids journal June 1987
Dissipative Relativistic Fluid Dynamics: A New Way to Derive the Equations of Motion from Kinetic Theory journal October 2010
Phenomenological Constraints on the Transport Properties of QCD Matter with Data-Driven Model Averaging journal June 2021
Diffusion of Conserved Charges in Relativistic Heavy Ion Collisions journal June 2018
The order of the quantum chromodynamics transition predicted by the standard model of particle physics journal October 2006
Fluctuations and correlations of net baryon number, electric charge, and strangeness: A comparison of lattice QCD results with the hadron resonance gas model journal August 2012
Far-from-equilibrium search for the QCD critical point journal October 2020
Spinodal Amplification of Density Fluctuations in Fluid-Dynamical Simulations of Relativistic Nuclear Collisions journal November 2012
Bulk properties of the medium produced in relativistic heavy-ion collisions from the beam energy scan program journal October 2017
Theory of dynamic critical phenomena journal July 1977
On spinodal points and Lee-Yang edge singularities journal March 2018
Off-equilibrium corrections to energy and conserved charge densities in the relativistic fluid in heavy-ion collisions journal September 2018
Chiral and deconfinement aspects of the QCD transition journal March 2012
Slowing out of equilibrium near the QCD critical point journal April 2000
Publisher’s Note: Proton-Number Fluctuation as a Signal of the QCD Critical End Point [Phys. Rev. Lett.PRLTAO0031-9007 91 , 102003 (2003)] journal September 2003
Highly relativistic nucleus-nucleus collisions: The central rapidity region journal January 1983
Modeling the diffusive dynamics of critical fluctuations near the QCD critical point journal November 2020
Introduction to hydrodynamics journal October 2015
Color superconductivity and chiral symmetry restoration at non-zero baryon density and temperature journal January 1999
Nonequilibrium chiral fluid dynamics including dissipation and noise journal August 2011
Relativistic hydrodynamic fluctuations journal August 2019
Single-particle distribution in the hydrodynamic and statistical thermodynamic models of multiparticle production journal July 1974
Generic instabilities in first-order dissipative relativistic fluid theories journal February 1985
Particlization in fluid dynamical simulations of heavy-ion collisions: The iS3D module journal January 2021
Density Fluctuations in the Presence of Spinodal Instabilities journal December 2007
Bulk viscosity and spectral functions in QCD journal September 2008
Transverse Momentum Differential Global Analysis of Heavy-Ion Collisions journal May 2021
Suppression of Baryon Diffusion and Transport in a Baryon Rich Strongly Coupled Quark-Gluon Plasma journal November 2015
Derivation of transient relativistic fluid dynamics from the Boltzmann equation journal June 2012
The QCD phase diagram from analytic continuation journal December 2015
Fluctuation dynamics in a relativistic fluid with a critical point journal September 2020
Diagonal and off-diagonal quark number susceptibilities at high temperatures journal October 2015
Dynamic universality class of the QCD critical point journal September 2004
Understanding the out-of-equilibrium dynamics near a critical point in the QCD phase diagram journal November 2020
Equilibration and relaxation times at the chiral phase transition including reheating journal May 2012
Equation of state at finite densities for QCD matter in nuclear collisions journal August 2019
Relativistic Dynamics of Fluctuations and QCD Critical Point journal January 2021
Net-baryon diffusion in fluid-dynamic simulations of relativistic heavy-ion collisions journal September 2018
Evolution of Non-Gaussian Hydrodynamic Fluctuations journal August 2021
The iEBE-VISHNU code package for relativistic heavy-ion collisions journal February 2016
Collision-geometry-based 3D initial condition for relativistic heavy-ion collisions journal July 2020
Transport coefficients for the hot quark-gluon plasma at finite chemical potential μ B journal April 2020

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