The utilization of magneto-hydrodynamics framework in expansion of magnetized viscous conformal flow

IF 2.6 3区 物理与天体物理 Q2 PHYSICS, NUCLEAR
M. Karimabadi, A. F. Kord, B. Azadegan
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引用次数: 0

Abstract

This study focuses on the evolution of magnetized quark–gluon plasma (QGP) within the framework of magneto-hydrodynamics (MHD). We investigate the temporal and spatial dynamics of QGP with additional second-order viscous corrections, considering the effects of a magnetic field generated during the early stages of relativistic heavy-ion collisions. In our analysis, we assume boost invariance along the beamline, represented by the \(z\)-coordinate, and fluid expansion along the \(x\)-direction. The magnetic field is assumed to be oriented perpendicular to the reaction plane, aligning with the \(y\)-direction. Additionally, we consider the fluid to have infinite electrical conductivity, simplifying the treatment of electromagnetic effects. To characterize the system, we solve the coupled Maxwell’s equations and the conservation equations of relativistic hydrodynamics. This approach allows us to elucidate the time and space dependence of key physical quantities, including the energy density, fluid velocity, and magnetic field within the transverse plane of the viscous, magnetized plasma. By deriving these quantities, we also compute the hadron spectra and perform a comparative analysis with experimental data to validate our theoretical predictions.

磁流体力学框架在磁化粘性保形流扩展中的应用
本文主要研究磁化夸克-胶子等离子体(QGP)在磁流体力学(MHD)框架下的演化。考虑到相对论性重离子碰撞早期产生的磁场的影响,我们研究了附加二阶粘性修正的QGP的时空动力学。在我们的分析中,我们假设沿波束线(由\(z\) -坐标表示)的升压不变性和沿\(x\) -方向的流体膨胀。假定磁场方向垂直于反应平面,与\(y\) -方向对齐。此外,我们认为流体具有无限导电性,简化了电磁效应的处理。为了对系统进行表征,我们求解了耦合的麦克斯韦方程组和相对论流体力学的守恒方程。这种方法使我们能够阐明关键物理量的时间和空间依赖关系,包括能量密度、流体速度和粘性磁化等离子体横向平面内的磁场。通过推导这些量,我们还计算了强子谱,并与实验数据进行了比较分析,以验证我们的理论预测。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
The European Physical Journal A
The European Physical Journal A 物理-物理:核物理
CiteScore
5.00
自引率
18.50%
发文量
216
审稿时长
3-8 weeks
期刊介绍: Hadron Physics Hadron Structure Hadron Spectroscopy Hadronic and Electroweak Interactions of Hadrons Nonperturbative Approaches to QCD Phenomenological Approaches to Hadron Physics Nuclear and Quark Matter Heavy-Ion Collisions Phase Diagram of the Strong Interaction Hard Probes Quark-Gluon Plasma and Hadronic Matter Relativistic Transport and Hydrodynamics Compact Stars Nuclear Physics Nuclear Structure and Reactions Few-Body Systems Radioactive Beams Electroweak Interactions Nuclear Astrophysics Article Categories Letters (Open Access) Regular Articles New Tools and Techniques Reviews.
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