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arXiv 2407.04653hep-ph
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Higgs玻色子对产生的电弱修正:top-Yukawa和自耦合贡献

Electroweak corrections to Higgs boson pair production: The top-Yukawa and self-coupling contributions

Gudrun Heinrich, Stephen Jones, Matthias Kerner, Thomas Stone, Augustin Vestner

AI总结:

本文研究了胶子融合中双Higgs产生的Yukawa增强型和Higgs自耦合型电弱修正,通过保留精确质量依赖的双圈振幅计算并结合级数展开与扇形分解进行高精度积分,发现修正效应在低不变量质量和低横动量处最为显著。

摘要:

我们给出了胶子融合中双Higgs产生的Yukawa增强型和Higgs自耦合型电弱修正结果。在约化为主积分的过程中,相应的四尺度、双圈振幅的计算保留了所有质量和标度的精确符号依赖性。随后,利用微分方程的级数展开和扇形分解,对所得积分进行了高精度计算。展示了双Higgs不变量质量和Higgs玻色子横动量的微分截面,我们发现这些修正效应在低不变量质量和低横动量处最为显著。

英文摘要:

We present results for the Yukawa-enhanced and Higgs self-coupling type electroweak corrections to di-Higgs production in gluon fusion. The calculation of the corresponding four-scale, two-loop amplitude is carried out retaining the exact symbolic dependence on all masses and scales during the reduction to master integrals. The resulting integrals are then evaluated at high precision using both the series expansion of the differential equations and sector decomposition. Differential cross sections for the di-Higgs invariant mass and the transverse momentum of a Higgs boson are shown, where we find that the corrections are most pronounced at low invariant mass and transverse momentum.

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