论文标题
$ {\ sqrt {s} = 13} $ tev在LHC处测量的$ {\ sqrt {s} = 13} $ tev的PP碰撞中的两粒子bose-Einstein相关性
Two-particle Bose-Einstein correlations in pp collisions at ${\sqrt{s} = 13}$ TeV measured with the ATLAS detector at the LHC
论文作者
论文摘要
本文使用来自CERN大型强子对撞机的Atlas检测器的数据，介绍了质子 - 质子碰撞中的Bose-Einstein相关性（BEC）。数据以最小偏置触发器和高多重轨道触发器的特殊低亮度配置收集，分别累积了151 $ $ $ $ b $ b $ b $ b $^{ - 1} $和8.4 nb $^{ - 1} $的集成灯泡。 BEC是针对类似的带电粒子对的，每个粒子都带有$ |η| $ <2.5，用于两个运动范围：第一个带有粒子$ p_t $> 100 meV的范围，第二个带有粒子$ p_t $> 500 mev的粒子。表征源半径和粒子相关强度的BEC参数被研究为带电粒子多重性的功能（最多300个）和这对的平均横向动量（高达1.5 GEV）。还研究了对双粒子多重性的双分歧依赖性和配对的平均横向动量。发现BEC半径独立于高电荷粒子多重性（以上100）的带电粒子多重性，这证实了先前的观察到较低的能量。这种饱和度与双对的横向动量无关。
This paper presents studies of Bose-Einstein correlations (BEC) in proton-proton collisions at a centre-of-mass energy of 13 TeV, using data from the ATLAS detector at the CERN Large Hadron Collider. Data were collected in a special low-luminosity configuration with a minimum-bias trigger and a high-multiplicity track trigger, accumulating integrated luminosities of 151 $μ$b$^{-1}$ and 8.4 nb$^{-1}$ respectively. The BEC are measured for pairs of like-sign charged particles, each with $|η|$ < 2.5, for two kinematic ranges: the first with particle $p_T$ > 100 MeV and the second with particle $p_T$ > 500 MeV. The BEC parameters, characterizing the source radius and particle correlation strength, are investigated as functions of charged-particle multiplicity (up to 300) and average transverse momentum of the pair (up to 1.5 GeV). The double-differential dependence on charged-particle multiplicity and average transverse momentum of the pair is also studied. The BEC radius is found to be independent of the charged-particle multiplicity for high charged-particle multiplicity (above 100), confirming a previous observation at lower energy. This saturation occurs independent of the transverse momentum of the pair.
