DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Fluctuating temperature and baryon chemical potential in heavy-ion collisions and the position of the critical end point in the effective QCD phase diagram

Abstract

We use the linear sigma model with quarks to locate the critical end point in the effective QCD phase diagram accounting for fluctuations in the temperature and quark chemical potential. For this purpose, we use the nonequilibrium formalism provided by the superstatistics framework. We compute the effective potential in the high- and low-temperature approximations up to sixth order and include the contribution of ring diagrams to account for plasma screening effects. We fix the model parameters from relations between the thermal sigma and pion masses imposing a first-order phase transition at zero temperature and a finite critical value for the baryon chemical potential that we take of the order of the nucleon mass. We find that the critical end point displacement due to fluctuations in the temperature and/or quark chemical potential is almost negligible.

Authors:
ORCiD logo; ; ; ORCiD logo; ORCiD logo
Publication Date:
Research Org.:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Org.:
USDOE Office of Science (SC); National Fund for Scientific and Technological Development (FONDECYT); Simons Foundation
OSTI Identifier:
1615535
Alternate Identifier(s):
OSTI ID: 1799984
Grant/Contract Number:  
FG02-00ER41132; IG100219; 1200483; 557037
Resource Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Name: Physical Review D Journal Volume: 101 Journal Issue: 7; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; Astronomy & Astrophysics; Physics

Citation Formats

Ayala, Alejandro, Hernández-Ortiz, Saul, Hernández, L. A., Knapp-Pérez, Víctor, and Zamora, R. Fluctuating temperature and baryon chemical potential in heavy-ion collisions and the position of the critical end point in the effective QCD phase diagram. United States: N. p., 2020. Web. doi:10.1103/PhysRevD.101.074023.
Ayala, Alejandro, Hernández-Ortiz, Saul, Hernández, L. A., Knapp-Pérez, Víctor, & Zamora, R. Fluctuating temperature and baryon chemical potential in heavy-ion collisions and the position of the critical end point in the effective QCD phase diagram. United States. https://doi.org/10.1103/PhysRevD.101.074023
Ayala, Alejandro, Hernández-Ortiz, Saul, Hernández, L. A., Knapp-Pérez, Víctor, and Zamora, R. Mon . "Fluctuating temperature and baryon chemical potential in heavy-ion collisions and the position of the critical end point in the effective QCD phase diagram". United States. https://doi.org/10.1103/PhysRevD.101.074023.
@article{osti_1615535,
title = {Fluctuating temperature and baryon chemical potential in heavy-ion collisions and the position of the critical end point in the effective QCD phase diagram},
author = {Ayala, Alejandro and Hernández-Ortiz, Saul and Hernández, L. A. and Knapp-Pérez, Víctor and Zamora, R.},
abstractNote = {We use the linear sigma model with quarks to locate the critical end point in the effective QCD phase diagram accounting for fluctuations in the temperature and quark chemical potential. For this purpose, we use the nonequilibrium formalism provided by the superstatistics framework. We compute the effective potential in the high- and low-temperature approximations up to sixth order and include the contribution of ring diagrams to account for plasma screening effects. We fix the model parameters from relations between the thermal sigma and pion masses imposing a first-order phase transition at zero temperature and a finite critical value for the baryon chemical potential that we take of the order of the nucleon mass. We find that the critical end point displacement due to fluctuations in the temperature and/or quark chemical potential is almost negligible.},
doi = {10.1103/PhysRevD.101.074023},
journal = {Physical Review D},
number = 7,
volume = 101,
place = {United States},
year = {Mon Apr 20 00:00:00 EDT 2020},
month = {Mon Apr 20 00:00:00 EDT 2020}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1103/PhysRevD.101.074023

Citation Metrics:
Cited by: 12 works
Citation information provided by
Web of Science

Save / Share:

Works referenced in this record:

QCD at finite temperature and chemical potential from Dyson–Schwinger equations
journal, March 2019


Multiplicity dependence of non-extensive parameters for strange and multi-strange particles in proton-proton collisions at $\sqrt{s} = 7$ s = 7 TeV at the LHC
journal, May 2017

  • Khuntia, Arvind; Tripathy, Sushanta; Sahoo, Raghunath
  • The European Physical Journal A, Vol. 53, Issue 5
  • DOI: 10.1140/epja/i2017-12291-8

Universality, the QCD critical and tricritical point, and the quark number susceptibility
journal, January 2003


Superstatistics: theory and applications
journal, March 2004


Chiral crossover in QCD at zero and non-zero chemical potentials
journal, August 2019


Elliptic flow in Pb+Pb collisions at $\sqrt{s_{{\rm NN}}} = 2.76$ s NN = 2 . 76 TeV at the LHC using Boltzmann transport equation with non-extensive statistics
journal, March 2018

  • Tripathy, Sushanta; Kumar Tiwari, Swatantra; Younus, Mohammed
  • The European Physical Journal A, Vol. 54, Issue 3
  • DOI: 10.1140/epja/i2018-12461-2

Locating the QCD critical endpoint through finite-size scaling
journal, February 2018


Critical end point in a thermomagnetic nonlocal NJL model
journal, September 2017


QCD phase diagram from chiral symmetry restoration: analytic approach at high and low temperature using the Linear Sigma Model with Quarks
journal, April 2018

  • Hernandez, Luis; Ayala, Alejandro; Hernandez-Ortiz, Saul
  • Revista Mexicana de Física, Vol. 64, Issue 3
  • DOI: 10.31349/RevMexFis.64.302

Quark number fluctuations at finite temperature and finite chemical potential via the Dyson-Schwinger equation approach
journal, October 2014


Lattice thermodynamics at finite chemical potential from analytical Continuation
journal, August 2018


Higher order fluctuations and correlations of conserved charges from lattice QCD
journal, October 2018

  • Borsanyi, Szabolcs; Fodor, Zoltan; Guenther, Jana N.
  • Journal of High Energy Physics, Vol. 2018, Issue 10
  • DOI: 10.1007/JHEP10(2018)205

Feasibility study of heavy-ion collision physics at NICA JINR
journal, November 2017


The chiral critical point of N f = 3 QCD at finite density to the order (μ/ T ) 4
journal, November 2008


Chiral phase transitions in QCD for finite temperature and density
journal, March 1990


Nuclear modification factor using Tsallis non-extensive statistics
journal, September 2016

  • Tripathy, Sushanta; Bhattacharyya, Trambak; Garg, Prakhar
  • The European Physical Journal A, Vol. 52, Issue 9
  • DOI: 10.1140/epja/i2016-16289-4

Magnetized effective QCD phase diagram
journal, November 2015


Phase structure of the Polyakov-quark-meson model
journal, October 2007


Curvature of the chiral pseudocritical line in QCD: Continuum extrapolated results
journal, September 2015


The imprints of superstatistics in multiparticle production processes
journal, January 2012


Finite-Temperature Field Theory
book, January 2006


Collision energy dependence of moments of net-kaon multiplicity distributions at RHIC
journal, October 2018


Radial flow in non-extensive thermodynamics and study of particle spectra at LHC in the limit of small (q - 1)
journal, February 2016

  • Bhattacharyya, Trambak; Cleymans, Jean; Khuntia, Arvind
  • The European Physical Journal A, Vol. 52, Issue 2
  • DOI: 10.1140/epja/i2016-16030-5

Exploring the QCD Phase Structure with Beam Energy Scan in Heavy-ion Collisions
journal, December 2016


The phase structure of the Polyakov–quark–meson model beyond mean field
journal, January 2011


QCD equation of state to O ( μ B 6 ) from lattice QCD
journal, March 2017


Chiral phase transition within effective models with constituent quarks
journal, August 2001


Hadronic matter near the boiling point
journal, August 1968


Curvature of the pseudocritical line in QCD: Taylor expansion matches analytic continuation
journal, September 2018


Beam Energy Dependence of Moments of the Net-Charge Multiplicity Distributions in Au + Au Collisions at RHIC
journal, August 2014


Proper time regularization and the QCD chiral phase transition
journal, April 2017

  • Cui, Zhu-Fang; Zhang, Jin-Li; Zong, Hong-Shi
  • Scientific Reports, Vol. 7, Issue 1
  • DOI: 10.1038/srep45937

Recent developments in superstatistics
journal, January 2009


Pressure and nonlinear susceptibilities in QCD at finite chemical potentials
journal, August 2003


Chiral phases of QCD at finite density and temperature
journal, January 1994


Thermodynamics of two flavor QCD to sixth order in quark chemical potential
journal, March 2005


The heavy-ion program of the future FAIR facility
journal, January 2017


Energy Dependence of Moments of Net-Proton Multiplicity Distributions at RHIC
journal, January 2014


Power laws in elementary and heavy-ion collisions: A story of fluctuations and nonextensivity?
journal, May 2009


Supporting the search for the CEP location with nonlocal PNJL models constrained by lattice QCD
journal, August 2016

  • Contrera, Gustavo A.; Grunfeld, A. Gabriela; Blaschke, David
  • The European Physical Journal A, Vol. 52, Issue 8
  • DOI: 10.1140/epja/i2016-16231-x

Superstatistical cluster decay
journal, December 2015


Chiral restoration at finite density and temperature
journal, November 1989


Chiral phase transition and QCD phase diagram from AdS/QCD
journal, February 2019


Phase diagram of QCD
journal, September 1998


Symmetry behavior at finite temperature
journal, June 1974


On the critical end point of QCD
journal, June 2005


The STAR beam energy scan phase II physics and upgrades
journal, November 2017


Tsallis statistics approach to the transverse momentum distributions in p–p collisions
journal, February 2014


The magnetized electron gas in terms of Hurwitz zeta functions
journal, October 2001


Chiral symmetry restoration by parity doubling and the structure of neutron stars
journal, November 2018


QCD phase diagram from finite energy sum rules
journal, September 2011


QCD thermal phase transition in the presence of a small chemical potential
journal, October 2002


Short-range two-particle correlations from statistical clusters
journal, May 2016


Critical line of 2 + 1 flavor QCD
journal, April 2014


Multiplicity fluctuations due to the temperature fluctuations in high-energy nuclear collisions
journal, May 2009


Curvature of the chiral pseudocritical line in QCD
journal, December 2014


Color superconductivity and chiral symmetry restoration at non-zero baryon density and temperature
journal, January 1999


Tsallis p ⊥ distribution from statistical clusters
journal, July 2015


Superstatistics
journal, May 2003


Holographic QCD phase diagram with critical point from Einstein–Maxwell-dilaton dynamics
journal, March 2018


Imaginary Chemical Potential, NJL-Type Model and Confinement–Deconfinement Transition
journal, April 2019


Critical line of 2 + 1 flavor QCD: Toward the continuum limit
journal, January 2016


Chiral-symmetry breaking in QCD at finite temperature and density
journal, November 1989


Phase transition for the system of finite volume in the ϕ4 theory in the Tsallis nonextensive statistics
journal, April 2018


Effective model for the QCD phase transitions at finite baryon density
journal, June 2015


Quark number susceptibilities and equation of state at finite chemical potential in staggered QCD with N t = 8
journal, March 2017


On the critical end point in a two-flavor linear sigma model coupled to quarks
journal, February 2020


Critical behaviors near the (tri-)critical end point of QCD within the NJL model
journal, October 2015


The QCD phase diagram from analytic continuation
journal, December 2015


The phase diagram of dense QCD
journal, December 2010


Superstatistics and the effective QCD phase diagram
journal, December 2018

  • Ayala, Alejandro; Hentschinski, Martin; Hernández, L. A.
  • Physical Review D, Vol. 98, Issue 11
  • DOI: 10.1103/PhysRevD.98.114002

From QCD-based hard-scattering to nonextensive statistical mechanical descriptions of transverse momentum spectra in high-energy p p and p p ¯ collisions
journal, June 2015


Phase structure of three and four flavor QCD
journal, August 2014

  • Fischer, Christian S.; Luecker, Jan; Welzbacher, Christian A.
  • Physical Review D, Vol. 90, Issue 3
  • DOI: 10.1103/PhysRevD.90.034022

Dynamical versus equilibrium properties of the QCD phase transition: A holographic perspective
journal, July 2017

  • Rougemont, Romulo; Critelli, Renato; Noronha-Hostler, Jacquelyn
  • Physical Review D, Vol. 96, Issue 1
  • DOI: 10.1103/PhysRevD.96.014032

On the precise determination of the Tsallis parameters in proton–proton collisions at LHC energies
journal, March 2018

  • Bhattacharyya, T.; Cleymans, J.; Marques, L.
  • Journal of Physics G: Nuclear and Particle Physics, Vol. 45, Issue 5
  • DOI: 10.1088/1361-6471/aaaea0

An example of the interplay of nonextensivity and dynamics in the description of QCD matter
journal, September 2016


QCD Phase Transition with Chiral Quarks and Physical Quark Masses
journal, August 2014


Thermodynamics and critical behavior in the Nambu–Jona-Lasinio model of QCD
journal, May 2008


Bootstraping the QCD critical point
journal, June 2003