论文标题
kt-Factoriation中的Trijets：矩阵元素与Parton淋浴
Trijets in kt-factorisation: matrix elements vs parton shower
论文作者
论文摘要
We study 3-jet event topologies in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 13 {\rm\ TeV}$ in a configuration, where one jet is present in the central pseudorapidity region ($|η| < 2.0$) while two other jets are in a more forward (same hemisphere) area ($|η| > 2.0$).我们使用以下方式比较各种Parton级别的预测：共线性分解，$ \ kt {} $ - 分解与完全偏外矩阵元素和混合框架。我们研究了不同的部分分布函数，初始状态辐射，最终状态辐射和强壮化的影响。我们专注于差分横截面，这是领先的Dijet系统和第三射流之间方位角差的函数，发现对正在研究的物理效应具有极好的敏感性。
We study 3-jet event topologies in proton-proton collisions at a centre-of-mass energy of $\sqrt{s} = 13 {\rm\ TeV}$ in a configuration, where one jet is present in the central pseudorapidity region ($|η| < 2.0$) while two other jets are in a more forward (same hemisphere) area ($|η| > 2.0$). We compare various parton level predictions using: collinear factorisation, $\KT{}$-factorisation with fully off-shell matrix elements and the hybrid framework. We study the influence of different parton distribution functions, initial state radiation, final state radiation, and hadronisation. We focus on differential cross sections as a function of azimuthal angle difference between the leading dijet system and the third jet, which is found to have excellent sensitivity to the physical effects under study.
