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多π关联对π发射源相干性的分析 被引量:1

Analysis of the Coherence of Pion Emitting SourceThrough Multipion Correlations
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摘要 对高能重离子碰撞中不同相于性程度π源产生的多π关联事件进行了蒙特卡罗模拟,比较了不同多重数子事件中的多π关联对π源相于性程度依赖的敏感性.对Bevalac流光室2.1AGeVNe+Pb和1.2AGeVAr+KCl中心碰撞产生的π源的相干性程度进行了分析,并与以往的2π干涉学的结果进行了比较. The multiparticle correlations of pious eastted from sources with different degreesof coherence are simulated by Monte Carlo method. The sensitivity of the dependenceof the multipion correlations in subevents with different multiplicities on the degreeof coherence of the pion-emitting source is investigated. The degrees of coherence ofthe sources for central collisions of 2.1A GeV Ne+Pb and 1.2A GeV Ar+KCl at theBevalac streamer chamber are analyzed. The results are compared with previous twopion interferometry results.
出处 《高能物理与核物理》 CSCD 北大核心 1996年第8期707-714,共8页 High Energy Physics and Nuclear Physics
基金 国家自然科学基金 高校博士点专项基金 黑龙江省自然科学基金
关键词 多π关联 π发射源 相干性程度 重离子碰撞 multipion correlations, pion-emitting source, degree of coherence.
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