HBT radii from the UrQMD transport approach at different energies

被引:0
|
作者
Graef, Gunnar [1 ,2 ]
Mount, Elliot [3 ]
Petersen, Hannah
Li, Qingfeng [4 ]
Lisa, Mike [3 ]
Bleicher, Marcus [1 ,2 ]
机构
[1] FIAS, Ruth Moufang Str 1, D-60438 Frankfurt, Germany
[2] Goethe Univ Frankfurt, Inst Theoret Phys, Ruth Moufang Str 1, D-60438 Frankfurt, Germany
[3] Ohio State Univ, Dept Phys, Columbus, OH 43210 USA
[4] Huzhou Teaching Coll, Sch Sci, Huzhou PT-313000, Peoples R China
来源
HCBM 2010 - INTERNATIONAL WORKSHOP ON HOT AND COLD BARYONIC MATTER | 2011年 / 13卷
关键词
HEAVY-ION COLLISIONS; HYDRODYNAMICS;
D O I
10.1051/epjconf/20111306003
中图分类号
O57 [原子核物理学、高能物理学];
学科分类号
070202 ;
摘要
We present results on Hanbury Brown-Twiss (HBT) radii extracted from the Ultra-relativistic Molecular Dynamics (UrQMD) approach to relativistic heavy ion collisions. The present investigation provides a comparison of results from pure hadronic transport calculations to a Boltzmann + Hydrodynamic hybrid approach with an intermediate hydrodynamic phase. For the hydrodynamic phase different Equations of State (EoS) have been employed, i.e. bag model, hadron resonance gas and a chiral EoS. The influence of various freeze-out scenarios has been investigated and shown to be negligible if hadronic rescatterings after the hydrodynamic evolution are included. Furthermore, first results of the source tilt from azimuthal sensitive HBT and the direct extraction from the transport model are presented and exhibit a very good agreement with E895 data at AGS.
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页数:4
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