New class of Hanbury-Brown-Twiss parameters

被引:18
作者
Wiedemann, UA
Heinz, U
机构
[1] Institut für Theoretische Physik, Universität Regensburg, Regensburg
来源
PHYSICAL REVIEW C | 1997年 / 56卷 / 02期
关键词
D O I
10.1103/PhysRevC.56.R610
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
In heavy ion collisions resonances can create strong non-Gaussian effects in the two-pion correlation function. Hence, the commonly used Gaussian fit parameters do not fully characterize these correlators. We suggest a different set of HBT parameters which does not presuppose a particular shape of the correlator and allows one to extract additional information not contained in the Gaussian fit parameters. Within a simple model for an expanding source including resonance decays it is shown that this additional information provides a clean distinction between scenarios with and without transverse flow.
引用
收藏
页码:R610 / R613
页数:4
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