Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in s = 8 TeV proton-proton collisions using the ATLAS detector
Measurement of the differential cross-section of highly boosted top quarks as a function of their transverse momentum in s = 8 TeV proton-proton collisions using the ATLAS detector
复制标题
使用 ATLAS 探测器测量 s = 8 TeV 质子-质子碰撞中高增强顶夸克的微分截面作为其横向动量的函数
DOI：
10.1103/physrevd.93.032009
复制
发表时间：
2016
影响因子：
5
通讯作者：
Aad G
中科院分区：
文献类型：
--
作者：
Aad G
在质心能量为8 TeV的质子-质子碰撞中，测量了高横动量顶夸克对产生的微分截面.测量是在通道中预先进行的。的横截面作为强子衰变顶夸克的横动量的函数的值超过300 GeV的报告。利用喷注子结构技术将强子衰变顶夸克重构为半径参数的反喷注。所观察到的产量进行校正的检测器的影响，以获得在接近事件选择的基准区域中的粒子水平的横截面。一个部分子水平的截面外推到全相空间也报道了顶夸克的横向动量超过300 GeV。大多数次到领先阶和领先阶矩阵元蒙特卡罗发生器的预测被发现同意与测量的横截面。
The differential cross-section for pair production of top quarks with high transverse momentum is measured inof proton-proton collisions at a center-of-mass energy of 8 TeV. The measurement is performed forevents in thechannel. The cross-section is reported as a function of the hadronically decaying top quark transverse momentum for values above 300 GeV. The hadronically decaying top quark is reconstructed as an anti-jet with radius parameterand identified with jet substructure techniques. The observed yield is corrected for detector effects to obtain a cross-section at particle level in a fiducial region close to the event selection. A parton-level cross-section extrapolated to the full phase space is also reported for top quarks with transverse momentum above 300 GeV. The predictions of a majority of next-to-leading-order and leading-order matrix-element Monte Carlo generators are found to agree with the measured cross-sections.