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摘要翻译：
研究了理想相对论旋转气体在热力学平衡状态下的物理特性，给出了自旋为1/2和1的大质量粒子的动量谱和偏振矢量的解析表达式。我们证明了有限角动量J在动量谱中具有各向异性，与J正交发射的粒子平均具有比沿其方向更大的动量。与非相对论情形不同，正确的偏振向量与总角动量并不对齐，并与动量相关。
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英文标题：
《The ideal relativistic spinning gas: polarization and spectra》
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作者：
F. Becattini, F. Piccinini
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最新提交年份：
2008
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分类信息：
一级分类：Physics 物理学
二级分类：Nuclear Theory 核理论
分类描述：Nuclear Theory Theory of nuclear structure covering wide area from models of hadron structure to neutron stars. Nuclear equation of states at different external conditions. Theory of nuclear reactions including heavy-ion reactions at low and high energies. It does not include problems of data analysis, physics of nuclear reactors, problems of safety, reactor construction
核理论涵盖从强子结构模型到中子星等广泛领域的核结构理论。不同外部条件下的核状态方程。核反应理论，包括低能和高能的重离子反应。它不包括数据分析问题、核反应堆物理问题、安全问题、反应堆建设问题
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一级分类：Physics 物理学
二级分类：Statistical Mechanics 统计力学
分类描述：Phase transitions, thermodynamics, field theory, non-equilibrium phenomena, renormalization group and scaling, integrable models, turbulence
相变，热力学，场论，非平衡现象，重整化群和标度，可积模型，湍流
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英文摘要：
We study the physics of the ideal relativistic rotating gas at thermodynamical equilibrium and provide analytical expressions of the momentum spectra and polarization vector for the case of massive particles with spin 1/2 and 1. We show that the finite angular momentum J entails an anisotropy in momentum spectra, with particles emitted orthogonally to J having, on average, a larger momentum than along its direction. Unlike in the non-relativistic case, the proper polarization vector turns out not to be aligned with the total angular momentum with a non-trivial momentum dependence.
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PDF链接：
https://arxiv.org/pdf/710.5694
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