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arXiv 0911.0884hep-ex
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HERA上包含ep散射截面的联合测量和QCD分析

Combined Measurement and QCD Analysis of the Inclusive ep Scattering Cross Sections at HERA

The H1, ZEUS Collaborations

摘要:

一个组合的包容性深非弹性截面测量的H1和ZEUS合作在中性和带电电流非极化EP散射在HERA在1994-2000年期间。这些数据跨越了负四动量转移平方Q^2和比约肯x的六个数量级。所使用的组合方法考虑了系统不确定性的相关性,从而提高了精度。结合的数据是唯一的输入在NLO QCD分析,确定一组新的部分子分布,HERAPDF 1.0,具有小的实验不确定性。该集合包括模型的估计和拟合结果的参数化不确定性。

英文摘要:

A combination is presented of the inclusive deep inelastic cross sections measured by the H1 and ZEUS Collaborations in neutral and charged current unpolarised ep scattering at HERA during the period 1994-2000. The data span six orders of magnitude in negative four-momentum-transfer squared, Q^2, and in Bjorken x. The combination method used takes the correlations of systematic uncertainties into account, resulting in an improved accuracy. The combined data are the sole input in a NLO QCD analysis which determines a new set of parton distributions, HERAPDF1.0, with small experimental uncertainties. This set includes an estimate of the model and parametrisation uncertainties of the fit result.

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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