中文
相关论文

相关论文: Dynamical evolution of critical fluctuations and i…

200 篇论文

For the discovery of the QCD critical point it is crucial to develop dynamical models of the fluctuations of the net-baryon number that can be embedded in simulations of heavy-ion collisions. In this proceeding, we study the dynamical…

We propose to describe the time evolution of quasi-stationary fluctuations near QCD critical point by a system of stochastic Boltzmann-Langevin-Vlasov-type equations. We derive the equations and study the system analytically in the…

高能物理 - 唯象学 · 物理学 2014-11-20 M. A. Stephanov

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…

核理论 · 物理学 2018-04-10 Marlene Nahrgang , Marcus Bluhm , Thomas Schaefer , Steffen A. Bass

I present an overview of recent theoretical results on fluctuations of conserved charges in heavy-ion collisions obtained in relativistic hydrodynamics and molecular dynamics frameworks. In particular, I discuss the constraints on the…

核理论 · 物理学 2023-03-22 Volodymyr Vovchenko

The experimental search for the QCD critical point by means of relativistic heavy-ion collisions necessitates the development of dynamical models of fluctuations. In this work we study the fluctuations of the net-baryon density near the…

核理论 · 物理学 2020-11-25 Marlene Nahrgang , Marcus Bluhm

We develop a dynamical model to describe critical fluctuations in heavy-ion collisions, incorporating the baryon diffusion current and chiral condensate as dynamical degrees of freedom, to address their nontrivial scale separation. The…

核理论 · 物理学 2025-02-26 Azumi Sakai , Koichi Murase , Hirotsugu Fujii , Tetsufumi Hirano

A quantitatively reliable theoretical description of the dynamics of fluctuations in non-equilibrium is indispensable in the experimental search for the QCD critical point by means of ultra-relativistic heavy-ion collisions. In this work we…

核理论 · 物理学 2019-06-26 Marlene Nahrgang , Marcus Bluhm , Thomas Schaefer , Steffen A. Bass

We apply stochastic hydrodynamics to the study of charge density fluctuations in QCD matter undergoing Bjorken expansion. We find that the charge density correlations are given by a time integral over the history of the system, with the…

核理论 · 物理学 2014-06-09 B. Ling , T. Springer , M. Stephanov

For the understanding of fluctuation measurements in heavy-ion collisions it is crucial to develop quantitatively reliable dynamical descriptions which take the non-perturbative nature of QCD near the phase transition into account. We…

高能物理 - 唯象学 · 物理学 2019-02-20 M. Bluhm , Y. Jiang , M. Nahrgang , J. M. Pawlowski , F. Rennecke , N. Wink

In order to compare theoretical calculations of thermal fluctuations of conserved quantities, such as charge susceptibilities or the specific heat, to experimentally measured correlations and fluctuations in heavy ion collisions, one must…

核理论 · 物理学 2017-05-31 Scott Pratt , Clint Young

Bulk fluctuations of conserved charges measured by event-by-event analysis in relativistic heavy ion collisions are observables which are believed to carry significant amount of information on the hot medium created by the collisions.…

核理论 · 物理学 2016-08-24 Masayuki Asakawa , Masakiyo Kitazawa

We derive a coupled set of equations that describe the non-equilibrium evolution of cumulants of critical fluctuations for space-time trajectories on the cross-over side of the QCD phase diagram. In particular, novel expressions are…

高能物理 - 唯象学 · 物理学 2015-09-30 Swagato Mukherjee , Raju Venugopalan , Yi Yin

We analyze the evolution of hydrodynamic fluctuations in a heavy ion collision as the system passes close to the QCD critical point. We introduce two small dimensionless parameters $\lambda$ and $\Delta_s$ to characterize the evolution.…

核理论 · 物理学 2019-10-09 Yukinao Akamatsu , Derek Teaney , Fanglida Yan , Yi Yin

We study the rapidity window dependences of higher order cumulants of conserved charges observed in relativistic heavy ion collisions. The time evolution and the rapidity window dependence of the non-Gaussian fluctuations are described by…

核理论 · 物理学 2015-12-09 Masakiyo Kitazawa

Hydrodynamic fluctuations have been studied in a wide variety of physical, chemical, and biological phenomena in the past decade. In high energy heavy ion collisions, there will be intrinsic fluctuations even if the initial conditions are…

核理论 · 物理学 2013-06-18 Joseph I. Kapusta , Juan M. Torres-Rincon

We investigate the evolution of the net-proton kurtosis and the kurtosis of the chiral order parameter near the critical point in the model of nonequilibrium chiral fluid dynamics. The order parameter is propagated explicitly and coupled to…

高能物理 - 唯象学 · 物理学 2016-03-23 Christoph Herold , Marlene Nahrgang , Yupeng Yan , Chinorat Kobdaj

We study the fluctuations and correlations of conserved charges, i.e. the baryon number, electric charge and the strangeness at finite temperature and nonzero baryon chemical potential with an effective model. The fluctuations are…

高能物理 - 唯象学 · 物理学 2010-10-27 Wei-jie Fu , Yue-liang Wu

We study the propogation and diffusion of electric charge fluctuations in high energy heavy ion collisions using the Cattaneo form for the dissipative part of the electric current. As opposed to the ordinary diffusion equation this form…

核理论 · 物理学 2018-01-31 Joseph I. Kapusta , Christopher Plumberg

Multiplicity fluctuations are one of the most crucial observables in the Beam Energy Scan program of the Relativistic Heavy Ion Collider. It is understood that they can be utilized to probe the whereabouts of the critical point on the phase…

核理论 · 物理学 2020-02-12 Hong-Hao Ma , Dan Wen , Kai Lin , Wei-Liang Qian , Bin Wang , Yogiro Hama , Takeshi Kodama

The moments and moment products of conserved charges are believed to be sensitive to critical fluctuations, which have been adopted in determining the QCD critical point. Using a dynamical multiphase transport model, we reproduce the…

核理论 · 物理学 2021-07-21 Ling Huang , Guo-Liang Ma
‹ 上一页 1 2 3 10 下一页 ›