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Title: Baryon number diffusion with critical fluctuations

Journal Article · · Nuclear Physics. A
 [1];  [2];  [3];  [4]
  1. SUBATECH UMR 6457 (IMT Atlantique, Univ. de Nantes, IN2P3/CNRS), Nantes (France)
  2. Univ. of Wroclaw, Wroclaw (Poland)
  3. North Carolina State Univ., Raleigh, NC (United States)
  4. Duke Univ., Durham, NC (United States)
+ Show Author Affiliations

The description of dynamical fluctuations near the QCD critical point in heavy-ion collisions is crucial for understanding the existing and upcoming experimental data from the beam energy scan programs. In this talk we discuss the evolution of fluctuations of the net-baryon density as given by a stochastic diffusion equation. In conclusion we study equilibrium as well as dynamical systems for which we can show the impact of nonequilibrium effects on the second-order moment.

Research Organization:
North Carolina State University, Raleigh, NC (United States); Duke Univ., Durham, NC (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FG02-03ER41260; FG02-05ER41367
OSTI ID:
1502400
Journal Information:
Nuclear Physics. A, Vol. 967, Issue C; ISSN 0375-9474
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 5 works
Citation information provided by
Web of Science

References (16)

Theory of dynamic critical phenomena journal July 1977
Sigma and hydrodynamic modes along the critical line journal July 2004
Signatures of the Tricritical Point in QCD journal November 1998
Event-by-event fluctuations in heavy ion collisions and the QCD critical point journal November 1999
Non-Gaussian Fluctuations near the QCD Critical Point journal January 2009
Third Moments of Conserved Charges as Probes of QCD Phase Structure journal December 2009
Slowing out of equilibrium near the QCD critical point journal April 2000
Nonequilibrium chiral fluid dynamics including dissipation and noise journal August 2011
Non-equilibrium time evolution of higher order cumulants of conserved charges and event-by-event analysis journal January 2014
Real-time evolution of non-Gaussian cumulants in the QCD critical regime journal September 2015
Equilibration and relaxation times at the chiral phase transition including reheating journal May 2012
The impact of dissipation and noise on fluctuations in chiral fluid dynamics journal April 2013
Chiral fluid dynamics with explicit propagation of the Polyakov loop journal January 2013
Dynamical net-proton fluctuations near a QCD critical point journal February 2016
Energy Dependence of Moments of Net-Proton Multiplicity Distributions at RHIC journal January 2014
Impact of resonance decays on critical point signals in net-proton fluctuations journal April 2017

Figures / Tables (3)

Fig. 1.(p. 2)figure Fig. 1.
Fig. 2.(p. 3)figure Fig. 2.
Fig. 3.(p. 3)figure Fig. 3.

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Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
QCD phase diagram
QCD critical point
critical fluctuations
stochastic baryon number diffusion
real-time dynamics