横向热化物质的早期动力学
Early dynamics of transversally thermalized matter
摘要：
我们认为，在相对论性重离子碰撞中产生的部分子系统是在横动量接近热力学平衡的状态下形成的，其随后的动力学在早期是由理想流体的纯横向流体动力学所主导的，这一观点与RHIC收集的数据是一致的。早期部分子动力学的这种情况可能有助于解决早期平衡的问题。
英文摘要：
We argue that the idea that the parton system created in relativistic heavy-ion collisions is formed in a state with transverse momenta close to thermodynamic equilibrium and its subsequent dynamics at early times is dominated by pure transverse hydrodynamics of the perfect fluid is compatible with the data collected at RHIC. This scenario of early parton dynamics may help to solve the problem of early equilibration.
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