Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at s = 7 $$ \sqrt{s}=7 $$ TeV using the ATLAS detector
Measurement of the charge asymmetry in dileptonic decays of top quark pairs in pp collisions at s = 7 $$ \sqrt{s}=7 $$ TeV using the ATLAS detector
复制标题
使用 ATLAS 探测器测量 s = 7 $$ sqrt{s}=7 $$ TeV 时 pp 碰撞中顶夸克对双轻体衰变中的电荷不对称性
DOI：
10.1007/jhep05(2015)061
复制
发表时间：
2015
影响因子：
5.4
通讯作者：
Aad G
中科院分区：
文献类型：
--
作者：
Aad G
利用ATLAS探测器收集的7 TeV质心能量下LHC pp碰撞的积分光度为4.6 fb−1的数据，给出了顶反顶电荷不对称的测量结果。选择具有两个带电轻子、至少两个喷流和大的横向动量缺失的事件。研究了两个可观测值：基于已识别的带电轻子的A、l、C和基于重构的tt终态的A、l、C。不对称被测量为
A measurement of the top-antitopcharge asymmetry is presented using data corresponding to an integrated luminosity of 4.6 fb− 1 of LHC pp collisions at a centreof-mass energy of 7 TeV collected by the ATLAS detector. Events with two charged leptons, at least two jets and large missing transverse momentum are selected. Two observables are studied: A ℓℓ C based on the identified charged leptons, and, based on the reconstructed tt final state. The asymmetries are measured to be