论文标题
在Di-higgs生产中追逐两吉格的双重二键模型
Chasing the two-Higgs doublet model in the di-Higgs production
论文作者
论文摘要
我们研究了两-higgs Doublet模型（2HDM）中大型强子对撞机的Di-higgs产生。特别是，我们研究了与标准型号（SM）Higgs Boson $ h $相关的额外的中性希格斯玻色子$ ϕ $。我们分析了两个方案，其中额外的higgs $ ϕ $是cp-e-e-e-odd状态，具有较大的顶野川相互作用。该作品的主要贡献来自Top-Quark循环引起的Gluon-Fusion频道$ GG \ to Hϕ $。 $ Hϕ $生产的测量可以探究希格斯潜力和顶级野生耦合中四分之一的耦合。在2HDM参数空间上施加了理论约束（来自扰动单位性和真空稳定性界限）和实验界限（来自SM HIGGS和风味物理学测量），我们计算出$ GG \的生产横截面。此外，我们在参数空间中仔细检查了这些过程，在该参数空间中，可以容纳CMS Di-Tau和Di-Photon多余的多余物品，$ \，$ GEV和/或MUON $ G-2 $异常。
We investigate the di-Higgs production at the Large Hadron Collider in the two-Higgs doublet model (2HDM). In particular, we study the production of an extra neutral Higgs boson $ϕ$ in association with the Standard Model (SM) Higgs boson $h$ in the Higgs alignment limit. We analyze two scenarios where the additional Higgs $ϕ$ is CP-even or -odd state with a large top-Yukawa interaction. The leading contribution of this production comes from the top-quark loop-induced gluon-fusion channel $gg \to hϕ$. The measurement of the $hϕ$ production can probe the quartic couplings in the Higgs potential as well as the top-Yukawa couplings. Imposing both theoretical constraints (from the perturbative unitarity and the vacuum stability bounds) and experimental bounds (from the SM Higgs and flavor physics measurements) on the 2HDM parameter space, we calculate the production cross-section of $gg \to hϕ$. Furthermore, we scrutinize these processes in the parameter spaces where the CMS di-tau and di-photon excesses around 100$\,$GeV, and/or the muon $g-2$ anomaly can be accommodated.
