Particle Correlations with the PHENIX Experiment.

Johnson, S. C.

Technical Information Center Oak Ridge Tennessee

关键词: Particle correlations;    Measurements;    Comparisons;    Phase transitions;    Energy dependence;   

RP-ID  :  DE200515013448

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

Results of identical pion correlations from the first year of data collection with the PHENIX detector at RHIC square root of SNN=130GeV are presented. PHENIX has good particle identification using an electromagnetic calorimeter for timing, leading to identified pions from .2 to 1 GeV/c. This extends the range of previously measured correlation radii at this energy to (k(sub tau))=633MeV/c. The beam energy dependence of the HBT radii are studied in depth and no significant dependence of the transverse radii is present. The longitudinal correlation length has a moderate energy dependence. Furthermore, theoretical predictions of Rout/Rside , severely underpredict the measured ratio, which is consistent with unity for all k(sub tau). The implications of these results are considered.