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arXiv 0805.2113hep-ph
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在偶极图中的Tevatron和LHC上进行独家光生

Exclusive photoproduction at the Tevatron and LHC within the dipole picture

L. Motyka, G. Watt

摘要:

我们预测了在Tevatron和LHC上光生J/psi介子和Uppermons介子以及Z^0玻色子的快度分布。我们使用等效光子近似的光子-质子截面的碰撞参量依赖偶极饱和模型,这已经被证明是一个很好的描述了各种各样的HERA数据。导出了类时中性电弱玻色子的夸克-反夸克光锥波函数。指出了类时重玻色子光生振幅与深虚康普顿散射振幅的本质区别。

英文摘要:

We provide predictions for the rapidity distributions of exclusive photoproduced J/psi and Upsilon mesons, and Z^0 bosons, at the Tevatron and LHC. We use the equivalent-photon approximation with the photon-proton cross sections given by the impact parameter dependent dipole saturation model, which has already been shown to give a good description of a wide variety of HERA data. We derive the quark-antiquark light-cone wave functions of timelike neutral electroweak bosons. An essential difference is pointed out between the amplitude for timelike heavy boson photoproduction and the amplitude for deeply virtual Compton scattering.

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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