Eur. Phys. J. A (2004) 20: 269-275
https://doi.org/10.1140/epja/i2003-10146-7

Cancelling Jüttner distributions for space-like freeze-out

¹ Theoretical and Computational Physics Section, Department of Physics, University of Bergen, Allegaten 55, 5007, Bergen, Norway
² MTA-KFKI, Research Institute for Particle and Nuclear Physics, P.O. Box 49, 1525, Budapest 114, Hungary

^* e-mail: karolis@ift.uib.no

Abstract

We study the freeze-out process of particles across a three-dimensional space-time hypersurface with space-like normal. The problem of negative contribution is discussed with respect to conservation laws, and a simple and practical new one-particle distribution for the post-FO side is introduced, the Cancelling Jüttner (CJ) distribution.