论文标题
朝着PDF拟合中物理方案的现象学意义
Towards the phenomenological implications of the Physical Scheme in PDF fits
论文作者
论文摘要
我们描述了对“物理方案”的PDF提取物的影响，这是一种夸张的质量质量方案，构成了内在的重型Quarks的影响，并提供了一种平稳过渡到重夸克阈值的方法。将强调对常规$ \ overline {\ text {ms}} $方案拆分功能和运行$α_s$的修改，共同引起了新的物理方案PDF Evolution。我们还提供了物理方案中NLO的DIS系数函数的分析公式，并显示了$ f_2 $ hamm conm dis结构函数的结果。由高亮度LHC的即将到来的统计数据激励，它体现了LHC精确物理时代的下一个阶段，以及从电子碰撞器的及时出现的，我们结束时要强调需要量化这些纠正的效果，以量化这些更正的效果这样做。
We describe the impact on PDF extractions of the 'Physical Scheme', a heavy-quark mass scheme that accounts for the effects of intrinsic heavy-quarks and provides a way to smoothly transition over the heavy-quark thresholds. The modifications made to the conventional $\overline{\text{MS}}$ scheme splitting functions and $α_s$ running will be emphasised, collectively giving rise to a new Physical Scheme PDF evolution. We also present the analytic formulae for the DIS coefficient functions at NLO in the Physical Scheme and show results for the $F_2$ charm DIS structure function. Motivated by the upcoming statistics from the High-Luminosity LHC, embodying the next phase of the precision physics era at the LHC, as well as in time from the Electron-Ion collider, we end by highlighting the need to quantify the effect of these corrections on PDF extractions over a wide range of momentum fractions $x$ and scales $Q^2$ and propose the use of $\texttt{xFitter}$ for doing so.
