论文标题

通过$ w^{\ pm}/z $ -Quadruplet Productions在LHC的最大对称2HDM的签名

Signature of the Maximally Symmetric 2HDM via $W^{\pm}/Z$-Quadruplet Productions at the LHC

论文作者

Darvishi, N., Masouminia, M. R.

论文摘要

我们考虑最大对称的两-higgs双重模型(MS-2HDM),其中所谓的标准模型(SM)比对可以自然地通过在2HDM上施加的SO(5)对称性来实现。我们通过$ p p \ to hx \ to vv^* x $和$ p p \ to hhx \ to vv^* v'v'v'v'^* x $ processes在LHC上研究MS-2HDM的签名。我们使用\ textsf {herwig〜7}多用途事件生成器在$ \ sqrt {s} = 13 $ 〜tev tev-Mass Energy时使用NLO QCD精度执行计算。我们表明,通过$ w^{\ pm}/z $ - $ pairs的单个Smlie Higgs玻色子的生产完全与SM对齐。有趣的是,繁重的希格斯状态的存在显着增强了$ w^{\ pm}/z $ -Quadruplet生产渠道的横截面。这些重要的分析可能有助于未来发现SM的最小和非常预测的扩展,并且可以推广到2HDM的其他实现。

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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