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arXiv 1009.0978hep-ex
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在HERA上测量质子结构及其对LHC的影响

Measurements of the proton structure at HERA and their impact for LHC

Alexey Petrukhin

摘要:

介绍了H1和ZEUS最近的结构和功能结果。这些数据已经在中性电流和带电电流反应的e+p和e-p碰撞中被记录下来,涵盖了从0.2GeV ~ 2到30000 GeV ~ 2的四动量平方转移Q2的广泛运动学范围,以及在~5*10-6和0.65之间的Bjorken x。从两个实验的数据已合并,导致显着降低实验的不确定性。结合测量分析的NLO QCD拟合,和一组部分子密度函数,HERAPDF1.0,从这些数据中单独提取。新的直接测量的结构功能FL,利用专用的低能量运行的HERA机,也提出了。部分子密度函数和预测的大型强子对撞机的HERA数据的影响进行了讨论。

英文摘要:

Recent structure function results from H1 and ZEUS are presented. The data have been recorded in e+p and e-p collisions for both Neutral Current and Charged Current reactions, covering a wide kinematic range of squared four-momentum transfers Q2, from 0.2GeV2 to 30000GeV2, and Bjorken x between ~5*10-6 and 0.65. Data from both experiments have been combined, leading to significantly reduced experimental uncertainties. The combined measurements are analysed in a NLO QCD fit, and a set of parton density functions, HERAPDF1.0, is extracted from these data alone. New direct measurements of the structure function FL, making use of dedicated low energy runs of the HERA machine, are also presented. The impact of the HERA data on the parton density functions and predictions for LHC is discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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