Measurement of neutral and charged current cross-sections in positron-proton collisions at large momentum transfer
Measurement of neutral and charged current cross-sections in positron-proton collisions at large momentum transfer
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DOI：
10.1007/s100520050721
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发表时间：
1999-08
期刊：
影响因子：
--
通讯作者：
C. Adloff;E. al.;Harp Collaboration
中科院分区：
文献类型：
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作者：
C. Adloff;E. al.;Harp Collaboration
在碰撞中测量了四动量转移平方在150 ~ 30000 GeV之间，比约肯x在0.0032 ~ 0.65之间的中性和带电电流过程的单、双微分截面。这些数据是在1994年至1997年期间由HERA的H1探测器获得的，它们对应于积分光度。检验了质子部分子密度的演化，结果与微扰QCD的预言没有明显偏差。确定了质子结构函数。本文给出了高轴上夸克和夸克分布的一个提取。在高电弱效应的重玻色子和观察，发现是符合标准模型的预期。
The inclusive single and double differential cross-sections for neutral and charged current processes with four-momentum transfer squaredbetween 150 and 30 000 GeVand with Bjorkenxbetween 0.0032 and 0.65 are measured incollisions. The data were taken with the H1 detector at HERA between 1994 and 1997, and they correspond to an integrated luminosity of. Theevolution of the parton densities of the proton is tested, yielding no significant deviation from the prediction of perturbative QCD. The proton structure functionis determined. An extraction of theuanddquark distributions at highxis presented. At highelectroweak effects of the heavy bosonsandare observed and found to be consistent with Standard Model expectation.