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arXiv 1504.07087hep-phhep-ex
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双Higgs二重态的II型跷跷板模型

Type-II seesaw model with two-Higgs doublets

Takaaki Nomura

摘要:

在扩展的II型跷跷板模型中,研究了寻找双荷Higgs粒子$(δ^{\pm\pm})$的问题.我们发现标量势引起了单荷希格斯粒子、希格斯粒子二重态和三重态之间的显著混合效应。这种混合导致了新的双电荷希格斯粒子的产生过程和衰变模式。在LHC的亮度为40 fb $^{-1}$,碰撞能量为13 TeV的条件下,我们发现在$5σ$能级上可以观测到质量低于$330$ GeV的$δ^{\pm\pm}$.此外,对于300 fb $^{-1}$的光度,观测到的$δ^{\pm\pm}$质量可达450 GeV。

英文摘要:

A study of searching for doubly charged Higgs $(δ^{\pm\pm})$ is performed in two-Higgs-doublet extension of the type-II seesaw model. We find that a significant mixing effect between singly charged Higgs of Higgs doublet and of triplet is arisen from the scalar potential. The mixing leads to new production processes and decay patterns of doubly charged Higgs. With luminosity of 40 fb$^{-1}$ and collision energy of 13 TeV at the LHC, we show that $δ^{\pm\pm}$ with mass below $330$ GeV could be observed at the $5σ$ level. Moreover, for the luminosity of 300 fb$^{-1}$, the observed mass of $δ^{\pm\pm}$ could reach up to 450 GeV.

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