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arXiv 1509.01802hep-ph
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多胶子振幅与双部分子相互作用

A Brief Comment on Multi-Gluon Amplitudes and Double Parton Interactions

Daniele Treleani, Giorgio Calucci

摘要:

一个最简单的情况下,其中的颜色有序的多胶子振幅的贡献,描述了一个三体部分子相互作用,可以分裂成两个弱相关的两体胶子散射振幅,从而可能有助于一个双部分子相互作用,简要讨论。我们发现,在DPI产生的典型组态中,末态胶子的横动量被成对补偿,而多胶子振幅的主要贡献是由于与两个初态胶子的融合振幅成比例的项.这对应于一个振幅有效地描述了两个,而不是一个三体部分相互作用。

英文摘要:

A simplest case, where a contribution to a color ordered multi-gluon amplitude, describing a three body partonic interaction, can split into two weakly correlated two-body gluon scattering amplitudes and may thus contribute to a Double Parton Interaction, is briefly discussed. We find that the color ordered amplitude is not enhanced in the typical configuration generated by a DPI, where the transverse momenta of final state gluons are compensated pairwise, while a dominant contribution to the multi-gluon amplitude is due to terms proportional to the fusion amplitude of two initial state gluons. Which corresponds to an amplitude effectively describing a two rather than a three-body partonic interaction.

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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