Large \(p_t\) enhancement from freeze out

Large \(p_t\) enhancement from freeze out

Freeze out of particles across three dimensional space-time hypersurface is discussed in a simple kinetic model. The final momentum distribution of emitted particles, for freeze out surfaces with space-like normal, shows a non-exponential transverse momentum spectrum. The slope parameter of the \(p_...

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Veröffentlicht in:arXiv.org 1999-05
Hauptverfasser: Magas, V K, Anderlik, Cs, Csernai, L P, Grassi, F, Greiner, W, Hama, Y, Kodama, T, Lázár, Zs, Stöcker, H
Format: Artikel
Sprache:eng
Schlagworte:
Hyperspaces
Three dimensional models
Transverse momentum
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Zusammenfassung:Freeze out of particles across three dimensional space-time hypersurface is discussed in a simple kinetic model. The final momentum distribution of emitted particles, for freeze out surfaces with space-like normal, shows a non-exponential transverse momentum spectrum. The slope parameter of the \(p_t\) distribution increases with increasing \(p_t\), in agreement with recently measured SPS pion and \(h^-\) spectra.
ISSN:2331-8422
DOI:10.48550/arxiv.9905054