Transverse activity of kaons and the deconfinement phase transition in nucleus-nucleus collisions

We found that the experimental results on transverse mass spectra of kaons produced in central Pb+Pb (Au+Au) interactions show an anomalous dependence on the collision energy. The inverse slopes of the spectra increase w
We found that the experimental results on transverse mass spectra of kaons produced in central Pb+Pb (Au+Au) interactions show an anomalous dependence on the collision energy. The inverse slopes of the spectra increase with energy in the low (AGS) and high (RHIC) energy domains, whereas they are constant in the intermediate (SPS) energy range. We argue that this anomaly is probably caused by a modification of the equation of state in the transition region between confined and deconfined matter. This observation may be considered as a new signal, in addition to the previously reported anomalies in the pion and strangeness production, of the onset of deconfinement located in the low SPS energy domain.
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Metadaten
Author:Mark I. Gorenstein, Marek Gazdzicki, Kyrill A. Bugaev
URN:urn:nbn:de:hebis:30-16449
Document Type:Preprint
Language:English
Date of Publication (online):2005/09/27
Year of first Publication:2003
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/09/27
Source:Phys.Lett. B567 (2003), http://arxiv.org/abs/hep-ph/0303041
HeBIS PPN:188755624
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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