Inhomogeneous space-time structure and two-pion interferometry in NEXSPHERIO model

O4; We examine the space-time structure of particle-emitting source and two-pion interferometry in a smoothed hydrodynamic model with fluctuating initial conditions. An equation of state with a crossover tran-sition between quark-gluon plasma and hadronic gas is adopted in the description of the sys...

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Bibliographic Details
Published in:Chinese physics C 2010-04, Vol.34 (4), p.472-478
Main Authors: Yan-Yu, Ren, J., Efaaf M, Wei-Ning, Zhang
Format: Article
Language:English
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Summary:O4; We examine the space-time structure of particle-emitting source and two-pion interferometry in a smoothed hydrodynamic model with fluctuating initial conditions. An equation of state with a crossover tran-sition between quark-gluon plasma and hadronic gas is adopted in the description of the system evolution. We find that the fluctuating initial conditions lead to inhomogeneons particle-emitting sources. The interferometry results of R_s and Ro indicate that both the source size and the duration of pion emission decrease when the freeze-out temperature increases. The values of R_o/R_s obtained by our simulated two-pion interferometry are consistent with the previous results of smoothed particle hydrodynamics, and smaller than those calculated in usual hydrodynamic models.
ISSN:1674-1137
2058-6132
0254-3052
DOI:10.1088/1674-1137/34/4/010