文章基本信息

标题："The effects of angular momentum conservation in relativistic heavy ion collisions"
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作者：F. Becattini
期刊名称：PoS - Proceedings of Science
印刷版ISSN：1824-8039
出版年度：2007
出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：The effects of angular momentum conservation in peripheral heavy ion collisions at very high energy are investigated. If a sufficiently large fraction of the initial angular momentum of the interaction region is converted into vorticity, the azimuthal anisotropy (elliptic flow) gets enhanced and the transverse momentum spectra turn out to be further broadened. A distinctive signature of the existence of vorticity in the plasma is the generation of a net polarization of the emitted hadrons with peculiar kinematical features. These phenomena might be possibly observed at LHC, where the initial angular momentum of the colliding ions will be about a factor 30 larger than at RHIC.