论文标题
基于随机方法,通过LHCB协作对Bose-Einstein的相关性分析
Analysis of Bose-Einstein correlation at 7 TeV by LHCb collaboration based on stochastic approach
论文作者
论文摘要
在LHCB合作的大型强子对撞机(LHC)在7 TEV测量的前向区域的Bose-Einstein相关性(BEC)通过两种名为cf $ _ {\ rm i} $ i} $和CF $ _ {\ rm rm rm rm rm rm rm rm rm rm rm rm rm rm ii}的常规公式进行了分析。第一个公式是众所周知的,并包含连贯性的程度($λ$),而Exchange函数$ e _ {\ rm be}^2 $从BE统计信息中。第二个公式是一个扩展公式(CF $ _ {\ rm ii} $),其中包含第二度相干$λ_2$和第二个Exchange函数$ e _ {\ rm be_2}^2 $。为了检查CF $ _ {\ rm II} $估计的参数的物理含义,我们使用三阴性二项式分布和三源化Glauber-Lachs公式的随机方法分析了LHCB BEC数据。我们的结果表明,在7 TEV时的BEC由由$ n $ $ n $([8,18],[19,35]和[36,96])定义的三个活动间隔组成。
The Bose-Einstein correlation (BEC) in forward region ($2.0<η<4.8$) measured at 7 TeV in the Large Hadron Collider (LHC) by the LHCb collaboration is analyzed using two conventional formulas of different types named CF$_{\rm I}$ and CF$_{\rm II}$. The first formula is well known and contains the degree of coherence ($λ$) and the exchange function $E_{\rm BE}^2$ from the BE statistics. The second formula is an extended formula (CF$_{\rm II}$) that contains the second degree of coherence $λ_2$ and the second exchange function $E_{\rm BE_2}^2$ in addition to CF$_{\rm I}$. To examine the physical meaning of the parameters estimated by CF$_{\rm II}$, we analyze the LHCb BEC data by using a stochastic approach of the three-negative binomial distribution and the three-generalized Glauber-Lachs formula. Our results reveal that the BEC at 7 TeV consisted of three activity intervals defined by the multiplicity $n$ ([8, 18], [19, 35], and [36, 96]) can be well explained by CF$_{\rm II}$.