Canonical Strangeness and Distillation Effects in Hadron Production
Abstract
Strangeness canonical ensemble for Maxwell-Boltzmann statistics is reconsidered for excited nuclear systems with non-vanishing net strangeness. A new recurrence relation method is applied to find the partition function. The method is first generalized to the case of quantum strangeness canonical ensemble. Uncertainties in calculation of the K+/pi+ excitation function are discussed. A new scenario based on the strangeness distillation effect is put forward for a possible explanation of anomalous strangeness production observed at the bombarding energy near 30 AGeV. The peaked maximum in the K+/pi+ ratio is considered as a sign of the critical end-point reached in evolution of the system rather than a latent heat jump emerging from the onset of the first order deconfinement phase transition.
Keywords
Cite
@article{arxiv.nucl-th/0411125,
title = {Canonical Strangeness and Distillation Effects in Hadron Production},
author = {V. D. Toneev and A. S. Parvan},
journal= {arXiv preprint arXiv:nucl-th/0411125},
year = {2009}
}
Comments
20 pages, 2 figures; typos corrected, 2 references added, minor corrections in text and figures