论文标题

测量横截面,用于生产$ z $玻色子与包括风味或双重$ b $ b $ b $ b $ b $ b $ b $ b $ b $ b $ by-radius Jet的质子proton-proton碰撞,在$ \ sqrt {s} = 13 $ tev和Atlas实验

Measurement of cross-sections for production of a $Z$ boson in association with a flavor-inclusive or doubly $b$-tagged large-radius jet in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS experiment

论文作者

ATLAS Collaboration

论文摘要

我们使用$ 36〜 \ mathrm {fb}^{ - 1} $来自Atlas检测器的数据$ 36〜 \ MATHRM {fb}^{ - 1} $。在包含风味和双$ B $标记的基准相位空间中,在粒子级别测量集成和差异的横截面。测量了大型射流质量和横向动量,其与$ z $玻色子的运动学关系以及大拉迪斯喷气机中$ b $ tage的小拉迪乌斯轨道射流的角度分离。该测量构成了与几种希格斯玻色子和超越标准模型物理学分析相关的运动学和风味构型中扰动量子染色体动力学的重要测试。结果强调了在包含风味的选择中对额外的耐药活动建模的问题,以及在$ b $ tage的相位空间中的风味数字方案之间的区别。

We present measurements of cross-sections for production of a leptonically decaying $Z$ boson in association with a large-radius jet in 13 TeV proton-proton collisions at the LHC, using $36~\mathrm{fb}^{-1}$ of data from the ATLAS detector. Integrated and differential cross-sections are measured at particle-level in both a flavor-inclusive and a doubly $b$-tagged fiducial phase-space. The large-radius jet mass and transverse momentum, its kinematic relationship to the $Z$ boson, and the angular separation of $b$-tagged small-radius track-jets within the large-radius jet are measured. This measurement constitutes an important test of perturbative quantum chromodynamics in kinematic and flavor configurations relevant to several Higgs boson and beyond-Standard-Model physics analyses. The results highlight issues with modeling of additional hadronic activity in the flavor-inclusive selection, and a distinction between flavor-number schemes in the $b$-tagged phase-space.

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