论文标题

HIGGS玻色子信号强度的非现代特征在LHC处

Non-metricity signatures on the Higgs boson signal strengths at the LHC

论文作者

Ilisie, Victor

论文摘要

在这项工作中,我们研究了LHC上与非金属量表$λ_Q$相关的高能Higgs玻色子现象学。非金属性存在于更通用的非利马尼亚几何形状中,这些几何形状描述了超出一般相对论的重力,并且在天文学和宇宙学中表现出了很好的特征,并且可以扰动地分析。使用有效的现场理论工具,我们计算了对单循环$ h \toγγ$和$ gg \ to H $过程的新物理贡献,并与康普顿散射的先前界限一起,我们获得了模型参数空间中的相关约束和相关性。这可以帮助我们进一步迈出一步,并且不再将重力效应与天文现象相关,并开始通过高能量实验来分析这些效果。反过来,这也可以帮助我们更好地掌握与重力相关的量子现象。

In this work we study the high-energy Higgs boson phenomenology associated to the non-metricity scale $Λ_Q$ at the LHC. Non-metricity is present in more generic non-Riemannian geometries describing gravity beyond General Relativity and exhibits nice features in astronomy and cosmology, and it can be analysed perturbatively. Using effective field theory tools, we calculate the new physics contributions to the one-loop $H\toγγ$ and $gg\to H$ processes and, together with previous bounds from Compton scattering, we obtain relevant constraints and correlations in the model's parameter space. This can help us take a step further, and no longer associate gravitational effects uniquely to astronomical phenomena, and to start analysing these effects by means of high energy experiments. In turn, this could also help us get a better grasp at quantum phenomena associated to gravity.

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