论文标题
Atlas $ v $ +喷气机对PDF的影响
Impact of ATLAS $V$ + jets data on PDF fits
论文作者
论文摘要
该程序提出了一组新的质子parton分布函数，即在QCD的近隔到领导阶的分析中产生的Atlasepwzvjet20。考虑的新数据集是ATLAS的测量值$ W^{\ pm} $和$ Z $ BOSON的生产与$ pp $ collisions In $ \ sqrt {s} $ = 8 tev in LHC的$ \ sqrt {s} $ collisions的生产，其集成的发光度为20.2 fb $^{ - 1} $^{ - 1} $^{ - 1} $和19.9 fb $^$}该分析还考虑了差异$ W^{\ pm} $和$ z $ BOSON生产的地图集的测量值，其集成光度为4.6 fb $^{ - 1} $，并从$ e^{\ e^{\ pm pm culterator inaa ata ata asa asa ata asa asa ata asa inaa shasa ata inaa hersa。显示了对高比约克森$ x $的海夸克密度的改进确定，同时证实了与以前Atlas Analyses发现的$ x \ sim $ 0.02的奇怪Quark密度相似的奇怪Quark密度。
This proceeding presents a new set of proton parton distribution functions, ATLASepWZVjet20, produced in an analysis at next-to-next-to-leading-order in QCD. The new datasets considered are the ATLAS measurements of $W^{\pm}$ and $Z$ boson production in association with jets in $pp$ collisions at $\sqrt{s}$ = 8 TeV at the LHC with integrated luminosities of 20.2 fb$^{-1}$ and 19.9 fb$^{-1}$ respectively. The analysis also considers the ATLAS measurements of differential $W^{\pm}$ and $Z$ boson production at $\sqrt{s}$ = 7 TeV with an integrated luminosity of 4.6 fb$^{-1}$ and deep-inelastic scattering data from $e^{\pm}p$ collisions at the HERA accelerator. An improved determination of the sea-quark densities at high Bjorken $x$ is shown, while confirming a strange-quark density of similar size as the up-and down-sea quark densities in the range $x\sim$ 0.02 found by previous ATLAS analyses.
