论文标题

Higgs + 4 Partons具有完全质量效应的一环振幅

The one-loop amplitudes for Higgs + 4 partons with full mass effects

论文作者

Budge, Lucy, Campbell, John M., De Laurentis, Giuseppe, Ellis, R. Keith, Seth, Satyajit

论文摘要

我们提供了Higgs + 4 Parton散射的单环振幅的紧凑型分析公式,$ 0 \ to G g G G H $,$ 0 \ to \ bar {q} q gg H $和$ 0 \ to \ bar {q} q \ bar {q} q} q}^q}^\ prime q^^prime q^prime prime a lo sosied sositied sipied sipied sipied。我们利用了与理论的对应关系,在该理论中,大量有色标量在循环中循环以避免结果中的术语数量扩散。此外,我们使用动量扭曲器和高精度数值评估来简化表达式。在本文中,就纺纱产品而言,该分析结果允许构建有效的数值程序来计算幅度。

We present compact analytic formulae for the one-loop amplitudes for Higgs + 4 parton scattering, $0 \to g g g g h$, $0 \to \bar{q} q gg h$ and $0\to \bar{q} q \bar{q}^\prime q^\prime h$, mediated by a loop of massive coloured quarks. We exploit the correspondence with a theory in which a massive coloured scalar circulates in the loop to avoid a proliferation in the number of terms in the result. In addition, we use momentum twistors and high precision numerical evaluations to simplify the expressions. The analytic results in this paper, in terms of spinor products, allow construction of an efficient numerical program to calculate the amplitude.

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