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arXiv 0907.1217hep-ex
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HERA上实光子和虚光子质子散射的高能衍射

Review of High Energy Diffraction in Real and Virtual Photon Proton scattering at HERA

G. Wolf

摘要:

DESY的电子-质子对撞机HERA为研究质心能量W高达250 GeV的实光子和虚光子-质子散射中的衍射打开了大门,虚光子的大负质量平方Q^2高达Q^2 = 1600 GeV^2。在W = 220 GeV,Q^2 = 4 GeV ^2时,衍射约占总虚光子质子截面的15%,在Q^2 = 200 GeV ^2时,衍射约占总虚光子质子截面的5%。概述了到2008年为止由实验H1和ZEUS获得的关于中性矢量介子产生和包容性衍射的结果。

英文摘要:

The electron-proton collider HERA at DESY opened the door for the study of diffraction in real and virtual photon-proton scattering at center-of-mass energies W up to 250 GeV and for large negative mass squared -Q^2 of the virtual photon up to Q^2 = 1600 GeV^2. At W = 220 GeV and Q^2 = 4 GeV^2, diffraction accounts for about 15% of the total virtual photon proton cross section decreasing to ~5% at Q^2 = 200 GeV^2. An overview of the results obtained by the experiments H1 and ZEUS on the production of neutral vectormesons and on inclusive diffraction up to the year 2008 is presented.

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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