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相关论文: Quantum evolution of the disoriented chiral conden…

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Anomalous neutral to charged kaon correlations measured by the ALICE collaboration have defied usual explanations. We propose that the large fluctuations could arise because of a disoriented isospin condensate where there is an imbalance…

高能物理 - 唯象学 · 物理学 2024-09-26 Joseph Kapusta , Scott Pratt , Mayank Singh

In this work we study the non-equilibrium dynamics of a quark-gluon plasma, as created in heavy-ion collisions. We investigate how big of a role plasma instabilities can play in the isotropization and equilibration of a quark-gluon plasma.…

高能物理 - 唯象学 · 物理学 2008-11-18 Bjoern Schenke

We study the dynamics of inhomogeneous scalar and pseudoscalar chiral order parameters within the framework of the time-dependent Ginzburg-Landau equations. We utilize a nonlocal chiral quark model to obtain the phase diagram of the model…

高能物理 - 唯象学 · 物理学 2018-07-18 Juan Pablo Carlomagno , Gastão Krein

In recent years, significant progress was reached in understanding of vacuum and hadronic structure. We review recent works on the {\it point-to-point correlation functions}, comparing those obtained from phenomenology, ``instanton liquid"…

高能物理 - 唯象学 · 物理学 2016-11-03 Edward Shuryak

We investigate dimuon production in the context of a first-order phase transition in QCD matter using a chiral fluid dynamics model. This approach incorporates non-equilibrium effects such as entropy production and reheating, which emerge…

The quark-meson model is often used as an effective low-energy model for QCD to study the chiral transition at finite temperature $T$, baryon chemical potential $\mu_B$, and isospin chemical potential $\mu_I$. The parameters of the model…

高能物理 - 唯象学 · 物理学 2018-04-18 Jens O. Andersen , Patrick Kneschke

We study the effect of periodic boundary conditions on chiral symmetry breaking and its restoration in Quantum Chromodynamics. As an effective model of the effective potential for the quark condensate, we use the quark-meson model, while…

高能物理 - 唯象学 · 物理学 2020-12-15 Shen-Song Wan , Daize Li , Bonan Zhang , Marco Ruggieri

Within first-order phase transitions, we investigate the pre-transitional effects due to the nonperturbative, large-amplitude thermal fluctuations which can promote phase mixing before the critical temperature is reached from above. In…

高能物理 - 唯象学 · 物理学 2008-11-26 A. K. Mohanty , P. Shukla , Marcelo Gleiser

We address the issue of whether a region of disordered chiral condensate (DCC), in which the chiral condensate has components along the pion directions, can form. We consider a system going through the chiral phase transition either via a…

高能物理 - 唯象学 · 物理学 2009-10-28 D. Boyanovsky , H. J. de Vega , R. Holman

Time evolution of electromagnetic field created in heavy-ion collisions strongly depends on the electromagnetic response of the quark-gluon plasma, which can be described by the Ohmic and chiral conductivities. The later is intimately…

高能物理 - 唯象学 · 物理学 2016-03-10 Kirill Tuchin

Using a chirally symmetric Lagrangian, which contains quarks as elementary degrees of freedom and mesons as bound states, we investigate the expansion and hadronization of a fireball, which initially contains only quarks and produces mesons…

高能物理 - 唯象学 · 物理学 2011-07-19 P. Rehberg , L. Bot , J. Aichelin

We study the role of QCD plasma instabilities in non-equilibrium quark-gluon plasmas. First, we argue that such instabilities must drastically modify the "bottom-up" thermalization scenario for heavy-ion collisions. Second, we discuss…

高能物理 - 唯象学 · 物理学 2010-02-16 Peter Arnold , Jonathan Lenaghan , Guy D. Moore

Magnetic plasma instabilities appear to play an important role in the early stages of quark-gluon plasma equilibration in the high energy (weak coupling) limit. Numerical studies of the growth of such instabilities from small seed…

高能物理 - 唯象学 · 物理学 2010-02-16 Peter Arnold , Guy D. Moore

We study the dynamical evolution of the so-called chiral magnetic effect in an electromagnetic conductor. To this end, we consider the coupled set of corresponding Maxwell and chiral anomaly equations, and we prove that these can be derived…

高能物理 - 唯象学 · 物理学 2015-10-21 Cristina Manuel , Juan M. Torres-Rincon

Coupling of the quark-gluon plasma from the early stage of heavy-ion collisions is argued to be weaker at LHC than at RHIC. For this reason, the role of instabilities - the pre-equilibrium plasma is unstable with respect to chromomagnetic…

核理论 · 物理学 2008-12-19 Stanislaw Mrowczynski

We study photoproduction during the non-equilibrium stages of the formation of chiral condensates within the ``quench'' scenario of the chiral phase transition. The dynamics is modeled with a gauged linear sigma model. A novel quantum…

高能物理 - 唯象学 · 物理学 2011-04-15 D. Boyanovsky , H. J. de Vega , R. Holman , S. Prem Kumar

We study thermalization, hydrodynamization, and chemical equilibration in out-of-equilibrium Quark-Gluon Plasma starting from various initial conditions using QCD effective kinetic theory, valid at weak coupling. In non-expanding systems…

高能物理 - 唯象学 · 物理学 2019-04-30 Aleksi Kurkela , Aleksas Mazeliauskas

We consider the quantum state describing theDisoriented Chiral Condensate (DCC), which may be produced in high energy collisions. We show how a mean field treatment of the quantum equations corresponding to the classical linear sigma model…

高能物理 - 唯象学 · 物理学 2009-10-28 R. D. Amado , Ian I. Kogan

To describe theoretically the creation and evolution of the quark-gluon plasma, one typically employs three ingredients: a model for the initial state, non-hydrodynamic early time evolution, and hydrodynamics. In this paper we study the…

高能物理 - 理论 · 物理学 2013-12-16 V. Balasubramanian , A. Bernamonti , J. de Boer , B. Craps , L. Franti , F. Galli , E. Keski-Vakkuri , B. Müller , A. Schäfer

The two-flavor quark-meson model is used as a low-energy effective model for QCD to study inhomogeneous chiral condensates at finite %temperature $T$ baryon chemical potential $\mu_B$. The parameters of the model are determined by matching…

高能物理 - 唯象学 · 物理学 2017-10-09 Prabal Adhikari , Jens O. Andersen , Patrick Kneschke