论文标题
（1 + 2）尺寸磁磁动力学的横向膨胀，纵向增强不变性
Transverse expansion of (1 + 2) dimensional magneto-hydrodynamics flow with longitudinal boost invariance
论文作者
论文摘要
在目前的工作中，我们研究了磁场对扩展热核物质作为理想流体的影响。我们考虑QGP，在（1 + 2）维纵向增强的流体膨胀的特定情况下，在外部来源产生的不均匀磁场的背景下。我们假设磁场沿垂直于反应平面的方向点，在适当的时间内遵循幂律衰减，并且在横平上有两个组件。为了简化计算，我们假设所研究的流体具有方位对称性，并且在反应的横向平面上的极坐标系中描述了磁性流动力方程。我们的结果描述了在存在不均匀外部磁场的情况下流体横向膨胀的时空演变。最终，我们利用横向速度和能量密度的校正来估计基于实验数据从重离子碰撞中出现的最终颗粒的横向动量光谱。
In the present work, we investigate the effects of magnetic field on expanding hot and dense nuclear matter as an ideal fluid. We consider QGP, on the particular case of a (1 + 2) dimensional longitudinally boost-invariant fluid expansion, in the background of an inhomogeneous magnetic field that is generated by external sources. We assume the magnetic field points in the direction perpendicular to the reaction plane, follows the power-law decay in proper time, and has two components on the transverse plane. To simplify the calculation, we suppose the investigated fluid has azimuthal symmetry, and magneto-hydrodynamic equations are described in a polar coordinate system on the transverse plane of reaction. Our results depict the space-time evolution of the transverse expansion of the fluid in the presence of an inhomogeneous external magnetic field. Ultimately, we utilize transverse velocity and correction of energy density to estimate the transverse momentum spectrum of final particles that emerge from heavy-ion collisions based on experimental data.
