论文标题
双Higgs Boson生产是针对错误签名Yukawa耦合的连续第四代的独家探测器
Double Higgs boson production as an exclusive probe for a sequential fourth generation with wrong-sign Yukawa couplings
论文作者
论文摘要
已经表明，来自大型强子对撞机（LHC）的数据并不排除手性顺序第四代费米子通过与其他三代人相同的机制获得其质量。但是，只有在适当增强标准模型的标量扇区，例如将其嵌入II型双Higgs Doublet模型，才有可能。在本文中，我们试图证明双Higgs生产（DHP）可以以非常有效的方式揭示出如此隐藏的第四代的存在。虽然SM中的DHP横截面很小，但第四代的DHP横截面显着增强。我们对DHP横截面对模型参数的依赖性进行详细分析，并表明在LHC的下一个运行的早期运行中可以看到DHP的正信号，或者排除了模型。
It has been shown that the data from the Large Hadron Collider (LHC) does not rule out a chiral sequential fourth generation of fermions that obtain their masses through an identical mechanism as the other three generations do. However, this is possible only if the scalar sector of the Standard Model is suitably enhanced, like embedding it in a type-II two-Higgs doublet model. In this article, we try to show that double Higgs production (DHP) can unveil the existence of such a hidden fourth generation in a very efficient way. While the DHP cross-section in the SM is quite small, it is significantly enhanced with a fourth generation. We perform a detailed analysis of the dependence of the DHP cross-section on the model parameters, and show that either a positive signal of DHP is seen in the early next run of the LHC, or the model is ruled out.
