...
首页> 外文期刊>Physical review, C >Anisotropic hydrodynamic modeling of 2.76 TeV Pb-Pb collisions
【24h】

Anisotropic hydrodynamic modeling of 2.76 TeV Pb-Pb collisions

机译:2.76 TEV PB-PB碰撞的各向异性流体动力学建模

获取原文
获取原文并翻译 | 示例
           

摘要

We compare phenomenological results from 3 + 1D quasiparticle anisotropic hydrodynamics (aHydroQP) with experimental data collected in the CERN Large Hadron Collider 2.76 TeV Pb-Pb collisions. In particular, we present comparisons of particle spectra, average transverse momentum, elliptic flow, and Hanbury Brown-Twiss radii. The aHydroQP model relies on the introduction of a single temperature-dependent quasiparticle mass which is fit to lattice QCD data. By taking moments of the resulting Boltzmann equation, we obtain the dynamical equations used in the hydrodynamic stage which include the effects of both shear and bulk viscosities. At freeze-out, we use anisotropic Cooper-Frye freeze-out performed on a fixed-energy-density hypersurface to convert to hadrons. To model the production and decays of the hadrons we use THERMINATOR2 which is customized to sample from ellipsoidal momentum-space distribution functions. Using smooth Glauber initial conditions, we find very good agreement with many heavy-ion collision observables.
机译:我们将来自3 + 1D Quasiparticle各向异性流体动力学(AyhdroQP)的现象学结果与Cern大型Hadron Collifer 2.76 Tev PB-PB碰撞中收集的实验数据进行比较。特别是,我们呈现粒子光谱,平均横向动量,椭圆形和Hanbury Brown-Twiss半径的比较。 AydroQP模型依赖于引入单个温度依赖性Quasiparticle质量,其适合格子QCD数据。通过采取所得Boltzmann方程的瞬间,我们获得了流体动力学阶段中使用的动态方程,包括剪切和堆积粘度的效果。在冻结时,我们使用在固定能量密度的超出面上进行各向异性Cooper-Frye冻结,以转换为HADRONS。为了建模强子的生产和衰减,我们使用热敏仪2,其定制于从椭圆体动量空间分布功能采样。使用光滑的Glauber初始条件,我们发现与许多重离子碰撞可观察结果非常好的协议。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号