arXiv 1503.067982015-03hep-phhep-th

五部分子QCD振幅的平面辐射零点

Planar radiation zeros in five-parton QCD amplitudes

L. A. Harland-Lang

备注：: 22 pages, 5 figures. Version accepted for publication in JHEP
发表信息：: JHEP 1505 (2015) 146
DOI：: 10.1007/JHEP05(2015)146

摘要：

我们证明了在5-部分子QCD散射过程中存在“平面”或“II型”辐射零点。也就是说，玻恩振幅示出完全消失的特定的运动学配置，当所有的粒子3-动量躺在一个平面。这一结果表明，遵循特别简单的颜色有序树振幅之间的已知BCJ关系，和MHV的形式主义是用来表达作为一个相对简单的表达形式的额外的运动约束，在只快度之间的差异的最终状态部分子。此外，我们发现，零存在的非平面配置的最终状态部分子，但正常的“I型”条件的粒子四动量一般不适用。我们提出的数值结果和评论的可能性观察平面辐射零点强子碰撞，通过中央独家三喷生产。

英文摘要：

We demonstrate the existence of `planar', or `type-II', radiation zeros in 5-parton QCD scattering processes. That is, the Born amplitudes are shown to completely vanish for particular kinematic configurations, when all the particle 3-momenta lie in a plane. This result is shown to follow particularly simply from the known BCJ relations between the colour-ordered tree amplitudes, and the MHV formalism is used to express the additional kinematic constraint as a relatively simple expression in terms of only rapidity differences between the final-state partons. In addition, we find that zeros exist for non-planar configurations of the final-state partons, but for which the normal `type-I' conditions on the particle four-momenta do not generally apply. We present numerical results and comment on the possibility of observing planar radiation zeros in hadronic collisions, via central exclusive three-jet production.

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。

摘要：

英文摘要：

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