Asymmetric 1+1-dimensional hydrodynamics in collision
Abstract
The possibility that particle production in high-energy collisions is a result of two asymmetric hydrodynamic flows is investigated, using the Khalatnikov form of the 1+1-dimensional approximation of hydrodynamic equations. The general solution is discussed and applied to the physically appealing "generalized in-out cascade" where the space-time and energy-momentum rapidities are equal at initial temperature but boost-invariance is not imposed. It is demonstrated that the two-bump structure of the entropy density, characteristic of the asymmetric input, changes easily into a single broad maximum compatible with data on particle production in symmetric processes. A possible microscopic QCD interpretation of asymmetric hydrodynamics is proposed.
Cite
@article{arxiv.1012.4687,
title = {Asymmetric 1+1-dimensional hydrodynamics in collision},
author = {Andrzej Bialas and Robi Peschanski},
journal= {arXiv preprint arXiv:1012.4687},
year = {2011}
}
Comments
10 pages, 4 (double) figures