论文标题
通过$ z^0 $ -boson生产$ pp $ collisisions探索非扰动的sudakov因子
Exploring non-perturbative Sudakov factor via $Z^0$-boson production in $pp$ collisions
论文作者
论文摘要
$ Z^0 $ -Boson生产在低横向动量上提供了一个独特的机会来探索非扰动的Sudakov因子。在本文中，我们采用非扰动Sudakov因子的三个参数化来计算$ ϕ^*$ - 分布，并将我们的结果与超精确的实验数据进行比较。我们通过$χ^2 $分析提取每个参数化的自由参数。还可以通过比较在不同的碰撞能和不同的速度范围上提取的值来研究这些自由参数的Parton-momentum分数依赖性。
$Z^0$-boson production at low transverse momentum offers an unique opportunity to explore the non-perturbative Sudakov factor. In this paper, we employ three parameterizations of the non-perturbative Sudakov factor to calculate the $ϕ^*$-distribution and compare our results with the ultra precise experimental data. We extract the free parameters in each parameterization with a $χ^2$ analysis. The parton-momentum-fraction dependence of these free parameters is also studied by comparing the values extracted at different collision energies and different rapidity ranges.
