论文标题
在确定质子PDF中的杜特龙不确定性
Deuteron Uncertainties in the Determination of Proton PDFs
论文作者
论文摘要
我们评估了由于质子Parton分布函数（PDFS）全球拟合中的核效应而导致的不确定性，这些质子分布功能（PDF）利用深弹性散射和氘靶标的DRELL-YAN数据。为此，我们使用迭代程序同时确定质子和杜特隆PDF，每个PDF在另一个中都包括不确定性。我们应用此程序来确定SLAC，BCDMS，NMC和DYE866/NUSEA固定目标Deuteron数据中包含的NNPDF3.1全球拟合中的核不确定性。我们表明，核不确定性对质子PDF的影响很小，一旦我们纠正核效应，总体不确定性的增加就微不足道。
We evaluate the uncertainties due to nuclear effects in global fits of proton parton distribution functions (PDFs) that utilise deep-inelastic scattering and Drell-Yan data on deuterium targets. To do this we use an iterative procedure to determine proton and deuteron PDFs simultaneously, each including the uncertainties in the other. We apply this procedure to determine the nuclear uncertainties in the SLAC, BCDMS, NMC and DYE866/NuSea fixed target deuteron data included in the NNPDF3.1 global fit. We show that the effect of the nuclear uncertainty on the proton PDFs is small, and that the increase in overall uncertainties is insignificant once we correct for nuclear effects.
