LHAPDF: PDF use from the Tevatron to the LHC
LHAPDF: PDF use from the Tevatron to the LHC
复制标题
DOI：
--
复制
发表时间：
2006-05
影响因子：
5.4
通讯作者：
D. Bourilkov;R. Group;M. Whalley
中科院分区：
文献类型：
--
作者：
D. Bourilkov;R. Group;M. Whalley
部分子密度函数（PDF）及其不确定性对Tevatron和LHC都是非常重要的课题。Tevatron的实验不仅可以通过限制PDF拟合来增强这一知识，而且还可以通过从目前正在分析最高能量强子对撞机数据的实验中反馈来开发和改进可用的PDF工具。重要的是，社区有标准化的工具和方法供其使用。在本说明中，我们简要总结了莱舒什雅阁PDF（LHAPDF）的最新发展，它是PDFLIB的现代替代品。我们还概述和比较的方法量化的影响PDF的不确定性对物理观测。PDF加权方法传播误差从PDF事件发生器观测的详细概述，并使用这种方法与PYTHIA的示例代码也包括在内。
Parton Density Functions (PDFs) and their uncertainties are extremely important topics for both the Tevatron and the LHC. Experiments at the Tevatron can enhance this knowledge not only by constraining the PDF fits, but also by developing and refining the available PDF tools through feed-back from the experiments that are currently analyzing the highest energy hadron collider data available. It is important that the community has standardized tools and methods at its disposal. In this note we summarize briefly the most recent developments of the The Les Houches Accord PDF (LHAPDF), which is the modern replacement for PDFLIB. We also outline and compare the methods of quantifying the impact of PDF uncertainties on physical observables. The PDF weighting method for propagating errors from PDFs to event generator observables is outlined in detail, and example code for using this method with PYTHIA is also included.