论文标题

骑望索:希格斯特期可能揭示的关于大规模中微子

Riding the Seesaw: What Higgsstrahlung May Reveal about Massive Neutrinos

论文作者

Felkl, Tobias, Lackner, Adam, Schmidt, Michael A.

论文摘要

我们研究了Higgsstrahung流程的横截面的预计高精度测量值$ e^+ e^ - \ to Zh $在未来的电子 - 峰撞机上可用于间接探测费米米金Seesaw模型。我们考虑了两个中心的质量能量$ \ sqrt {s} = 240 $ gev和$ 365 $ gev,并将对撞机所覆盖的距离与Electroweak可观察物的约束,Lepton风味普遍性的探针以及对Lepton风味侵害的搜索的现有和前瞻性界限进行比较。对于分析,我们假设精确保守的Lepton-number对称性的极限。我们发现,虽然对Higgsstrahung横截面的任何明显的校正已经严格在I型Seesaw模型中受到严格约束,但在类型-IIII Seesaw中,最多可能的效果是最多$ \ MATHCAL {O}(10 \%)$。

We investigate if the projected high-precision measurements of the cross section of the Higgsstrahlung process $e^+ e^- \to Zh$ at a future electron-positron collider can be utilised to indirectly probe the fermionic Seesaw models. We consider the two centre-of-mass energies $\sqrt{s}=240$ GeV and $365$ GeV, and compare the collider reaches to constraints from electroweak observables, probes of lepton flavour universality and the existing and prospective bounds from searches for lepton flavour violation. For the analysis we assume the limit of an exactly conserved lepton-number symmetry. We find that while any appreciable correction to the Higgsstrahlung cross section is already strictly constrained in the Type-I Seesaw model, effects of up to $\mathcal{O}(10\%)$ are possible within Type-III Seesaw.

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