论文标题
光希格斯玻色子对生产的未来探测
The future probe of the light Higgs boson pair production
论文作者
论文摘要
在这项工作中，我们研究了两个Higgs Doublet模型（2HDM）框架中的光希格斯方案。在这种情况下，较重的CP-even Higgs Boson $ h $ 2hdm是类似Sm的Higgs，具有125 GEV质量和CP-Even Higgs Boson $ h $ h $ h $ h $远比125 GEV展览。我们发现，这种情况存在于$ \ sin（β-α）\ simeq 0 $的对齐限制中，并且仍然允许125 GEV Higgs的全球拟合，并且直接搜索$ h \ to HH $和$ h \ hh $ hH \forγγ$。 $ m_h <m_h/2 $的情况受到高度限制，因为外来衰减模式$ h \ to hh $是允许的。我们专注于$ M_H> m_h/2 $ case，并在LHC上模拟光Higgs玻色子的一对生产。这对生产对通过HIGGS自耦合在2HDM电位中的软$ \ Mathbb {z} _2 $对称性折断项$ m_ {12} $敏感。我们发现，未来的高光度LHC可以在$ \tanβ\ sillsim 1 $ 1 $和$ 0 <m_ {12} <100 $ GEV的区域中发现$ b \ bar {b}γγ$信号。
In this work we study the light Higgs scenario in the framework of two Higgs doublet model (2HDM). In this case the heavier CP-even Higgs boson $H$ in 2HDM is the SM-like Higgs with 125 GeV mass and a CP-even Higgs boson $h$ lighter than 125 GeV exhibits in the spectrum. We find that this scenario exists in the alignment limit of $\sin(β-α)\simeq 0$ and is still allowed by the global fit of the 125 GeV Higgs and the direct searches for $H\to hh$ and $h\to γγ$. The case of $M_h<M_H/2$ is highly constrained as the exotic decay mode $H\to hh$ is kinematically allowed. We focus on the $M_h>M_H/2$ case and simulate the pair production of the light Higgs boson at the LHC. The pair production is sensitive to the soft $\mathbb{Z}_2$ symmetry breaking term $m_{12}$ in the 2HDM potential through the Higgs self-couplings. We find that the future high-luminosity LHC can discover the $b\bar{b}γγ$ signal in the region of $\tanβ\lesssim 1$ and $0<m_{12}<100$ GeV allowed by the theoretical constraints.
