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arXiv 0806.2615hep-ex
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HERA上的高Q2结构函数

High Q2 Structure Functions at HERA

Katherine Korcsak-Gorzo

摘要:

本文介绍了H1和ZEUS关于极化轻子束电弱截面的最新结果,以及由此得到的部分子密度函数的改进。中性电流的截面之间的e-p和e+p的不对称性进行了测量,并显示符合标准模型的宇称破坏。已获得的依赖性的充电电流的截面上的光束极化和其外推到全极化意味着没有右手的充电电流。约束的矢量和轴向矢量耦合的u和d夸克的Z玻色子从一个组合的QCD和电弱拟合和H1和ZEUS数据的组合的结果进行了审查。

英文摘要:

The latest results of H1 and ZEUS on the electroweak cross sections using polarised lepton beams are presented with the improvements in the parton density functions that result from them. The asymmetry of the neutral current cross sections between e-p and e+p was measured and shows parity violation in agreement with the Standard Model. The dependence of the charged current cross section on the beam polarisation has been obtained and its extrapolation to full polarisation implies the absence of right-handed charged currents. Constraints on the vector and axial vector couplings of the u and d quarks to the Z boson from a combined QCD and electroweak fit are shown and the results from the combination of H1 and ZEUS data are reviewed.

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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