通过$W^{\pm}/Z$对最大对称2 HDM进行签名-LHC的四元组制作
Signature of the Maximally Symmetric 2HDM via $W^{\pm}/Z$-Quadruplet Productions at the LHC
摘要：
我们考虑了最大对称双Higgs模型（MS-2 HDM），其中所谓的标准模型（SM）排列可以通过强加在2 HDM上的SO（5）对称性自然地实现。我们调查的签名MS-2 HDM通过$p p \to HX \to VV^* X$和$p p \to HHX \to VV^*V'V'^* X$过程在LHC的不同值的$\tan β$。我们使用\textsf{Herwig~7}多用途事件发生器在$\sqrt{s}=13$ ~TeV质心能量下进行了NLO QCD精度的计算。我们表明，通过$W^{\pm}/Z$ -对的单一SM-类希格斯玻色子的生产是完全符合SM。有趣的是，重希格斯态的存在显著增强了低$p_{\perp}$区域中的$W^{\pm}/Z$ -四联体产生通道的横截面。这些重要的分析可能有助于未来发现SM的这种最小和非常具有预测性的扩展，并且可以推广到2 HDM的其他实现。
英文摘要：
We consider the Maximally Symmetric Two-Higgs Doublet Model (MS-2HDM) in which the so-called Standard Model (SM) alignment can be achieved naturally by the virtue of an SO(5) symmetry imposed on the 2HDM. We investigate the signature of the MS-2HDM via $p p \to HX \to VV^* X$ and $p p \to HHX \to VV^*V'V'^* X$ processes at the LHC for different values of $\tan β$. We perform our calculations with NLO QCD accuracy, using the \textsf{Herwig~7} multi-purpose event generator at $\sqrt{s}=13$~TeV center-of-mass energy. We show that the production of single SM-like Higgs bosons via $W^{\pm}/Z$-pairs is completely aligned with the SM. Interestingly, the presence of the heavy Higgs states significantly enhances the cross-section for the $W^{\pm}/Z$-quadruplet production channels in the low-$p_{\perp}$ regions. These vital analyses may aid the future discovery of this minimal and very predictive extension of the SM and can be generalised to other realisations of the 2HDM.
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