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Large $p_t$ enhancement from freeze out

V. K. Magas·Cs. Anderlik·L. P. Csernai·F. Grassi·W. Greiner·Y. Hama·T. Kodama·Zs. Lázár·H. Stöcker
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Abstract

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.

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V. K. Magas, Cs. Anderlik, L. P. Csernai, F. Grassi, W. Greiner, Y. Hama, T. Kodama, Zs. Lázár, H. Stöcker. 1999-05-26. Large $p_t$ enhancement from freeze out. https://doi.org/10.1016/s0370-2693(99)00666-8

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