Bose-Einstein correlations of charged pion pairs in Au+Au collisions at √sNN = 200 GeV -: art. no. 152302
Bose-Einstein correlations of charged pion pairs in Au+Au collisions at √sNN = 200 GeV -: art. no. 152302
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DOI：
10.1103/physrevlett.93.152302
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发表时间：
2004-10-08
影响因子：
8.6
通讯作者：
Zolin, L
中科院分区：
文献类型：
--
作者：
Adler, SS;Afanasiev, S;Zolin, L
用PHENIX实验测量了根（NN）=200 GeV的Au+Au碰撞中的中快度同荷π介子对的玻色-爱因斯坦关联.的Bertsch-Pratt半径参数被确定为一个函数的横向动量的对，并作为一个函数的碰撞的中心。采用标准的核晕部分库仑拟合和一种新的参数化方法，对由异号π介子关联确定的库仑分数进行了约束，得到了在0.25 μ m的情况下，R-out/R-side的比值在0.8-1.1之间
Bose-Einstein correlations of identically charged pion pairs were measured by the PHENIX experiment at midrapidity in Au+Au collisions at roots(NN)=200 GeV. The Bertsch-Pratt radius parameters were determined as a function of the transverse momentum of the pair and as a function of the centrality of the collision. Using the standard core-halo partial Coulomb fits, and a new parametrization which constrains the Coulomb fraction as determined from the unlike-sign pion correlation, the ratio R-out/R-side is within 0.8-1.1 for 0.25