Detection of source inhomogeneity through event-by-event two-pion Bose–Einstein correlations

Detection of source inhomogeneity through event-by-event two-pion Bose–Einstein correlations
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通过逐事件二π介子玻色爱因斯坦相关性检测源不均匀性

DOI:
10.1016/j.physletb.2008.10.005
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发表时间:
2008-10
期刊:
Phys. Lett. B
影响因子:
--
通讯作者:
Lian-Li Liu
Lian-Li Liu
中科院分区:
其他
文献类型:
--
作者:
Wei-Ning Zhang;Yan-Yu Ren;Lian-Li Liu

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我们发展了一种方法,通过逐事件的两π玻色-爱因斯坦关联来探测超相对论重离子碰撞中产生的π介子发射源的不均匀性。单粒子和混合粒子的两π相关函数之间的误差反加权涨落的均方根是探测的有用观测量。通过研究不同碰撞参数区域的加权涨落的均方根值,人们有望确定即将到来的大型强子对撞机(LHC)重离子实验中粒子发射的不均匀性。
We develop a method for detecting the inhomogeneity of the pion-emitting sources produced in ultra-relativistic heavy ion collisions, through event-by-event two-pion Bose–Einstein correlations. The root-mean-square of the error-inverse-weighted fluctuations between the two-pion correlation functions of single and mixed events are useful observables for the detection. By investigating the root-mean-square of the weighted fluctuations for different impact parameter regions people may hopefully determine the inhomogeneity of the particle-emitting in the coming Large Hadron Collider (LHC) heavy ion experiments.
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