Phase transition in hot pion matter

The equation of state for the pion gas is analyzed within the third virial approximation. The second virial coeffcient is found from the pi pi -scattering data, while the third one is considered as a free parameter. The 
The equation of state for the pion gas is analyzed within the third virial approximation. The second virial coeffcient is found from the pi pi -scattering data, while the third one is considered as a free parameter. The proposed model leads to a first-order phase transition from the pion gas to a more dense phase at the temperature Tpt < 136 MeV. Due to relatively low temperature this phase transition cannot be related to the deconfinement. This suggests that a new phase of hadron matter hot pion liquid may exist.
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Metadaten
Author:Andriy P. Kostyuk, Mark I. Gorenstein, Horst Stöcker, Walter Greiner
URN:urn:nbn:de:hebis:30-21790
Document Type:Preprint
Language:English
Date of Publication (online):2005/11/21
Year of first Publication:2000
Publishing Institution:Univ.-Bibliothek Frankfurt am Main
Release Date:2005/11/21
Tag:heiße Pion Materie
hot pion matter
Source:Phys.Lett.B500:273-278,2001. [hep-ph/0010076] Version 2
HeBIS PPN:185476201
Institutes:Physik
Dewey Decimal Classification:530 Physik
Sammlungen:Universitätspublikationen
Licence (German):License Logo Veröffentlichungsvertrag für Publikationen

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