The ideal relativistic spinning gas: polarization and spectra
Nuclear Theory
2008-11-26 v2 Statistical Mechanics
Abstract
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.
Keywords
Cite
@article{arxiv.0710.5694,
title = {The ideal relativistic spinning gas: polarization and spectra},
author = {F. Becattini and F. Piccinini},
journal= {arXiv preprint arXiv:0710.5694},
year = {2008}
}
Comments
Final published version. Minor corrections to formulae