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arXiv 1209.3671nucl-thhep-ph
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各向异性夸克和胶子流体的流体力学

Hydrodynamics of anisotropic quark and gluon fluids

Wojciech Florkowski, Radoslaw Maj, Radoslaw Ryblewski, Michael Strickland

摘要:

将最近发展起来的各向异性流体动力学框架推广到夸克-胶子耦合流体的动力学。流体中的夸克和胶子分量具有不同的动力学各向异性参数。描述这种混合物的动力学方程是从动力学理论中推导出来的,在弛豫时间近似下处理碰撞核,允许夸克和胶子有不同的弛豫时间。重子数守恒在流体的夸克和反夸克成分中被强制执行,但在系统中允许整体部分子数不守恒。在(0+1)维助推不变的情况下,在零重子密度和有限重子密度下数值求解了所得方程。

英文摘要:

The recently developed framework of anisotropic hydrodynamics is generalized to describe the dynamics of coupled quark and gluon fluids. The quark and gluon components of the fluids are characterized by different dynamical anisotropy parameters. The dynamical equations describing such mixtures are derived from kinetic theory with the collisional kernel treated in the relaxation- time approximation allowing for different relaxation times for quarks and gluons. Baryon number conservation is enforced in the quark and anti-quark components of the fluid, but overall parton number non-conservation is allowed in the system. The resulting equations are solved numerically in the (0+1)-dimensional boost-invariant case at zero and finite baryon density.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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