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arXiv 1408.5010hep-ph
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质子-质子对撞机三线性Higgs耦合的唯象

Phenomenology of the trilinear Higgs coupling at proton-proton colliders

Magdalena Slawinska, Wouter van den Wollenberg, Bob van Eijk, Stan Bentvelsen

摘要:

我们调查希格斯对生产质子-质子对撞机,重点是在HL-LHC的胶子融合通道。我们利用夸克环的精确计算和无限夸克质量近似研究了首阶矩阵元的行为。我们分析了双希格斯粒子的运动学,寻找希格斯粒子自耦合对SM希格斯粒子对生产的贡献增强的相空间区域。我们讨论了如何非SM值的希格斯三线性耦合可能会影响希格斯对的运动学。

英文摘要:

We investigate Higgs pair production at proton-proton colliders, with emphasis on the gluon fusion channel at the HL-LHC. We study the behaviour of the leading order matrix element using exact computation of quark loops and infinite quark mass approximation. We analyse di-Higgs kinematics in search for phase space regions where the contribution of Higgs self-coupling to SM Higgs pair production is enhanced. We discuss how non-SM values of the Higgs trilinear coupling may affect the kinematics of the Higgs pair.

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