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arXiv 1602.01231hep-ph
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在未来光子-光子对撞机上Stoponium的Di-Higgs衰变

Di-Higgs Decay of Stoponium at Future Photon-Photon Collider

Hayato Ito, Takeo Moroi, Yoshitaro Takaesu

摘要:

我们研究了在国际$e^+e^-$直线对撞机(ILC)的光子-光子对撞机选项,其质心能量计划达到$\sim 1$ TeV的双希格斯衰变模式的可探测性。我们发现,$5σ$检测的di-Higgs衰变模式是可能的,与集成的电子束光度的$1 {\rm ab}^{-1}$,如果信号截面,$σ(γγ\rightarrow σ_{\tilde{t}_1} \rightarrow hh)$,${\cal O}(0.1)$ fb的实现的stoponium质量小于$\sim$ 800 GeV在1 TeV的ILC。这样的截面值可以在具有相对大的三线性停-停-希格斯耦合常数的最小超对称标准模型(MSSM)中实现。本文还讨论了对MSSM停止扇区进行Stoponium截面测量的意义。

英文摘要:

We study the detectability of the stoponium in the di-Higgs decay mode at the photon-photon collider option of the International $e^+e^-$ Linear Collider (ILC), whose center-of-mass energy is planned to reach $\sim 1$ TeV. We find that $5σ$ detection of the di-Higgs decay mode is possible with the integrated electron-beam luminosity of $1 {\rm ab}^{-1}$ if the signal cross section, $σ(γγ\rightarrow σ_{\tilde{t}_1} \rightarrow hh)$, of ${\cal O}(0.1)$ fb is realized for the stoponium mass smaller than $\sim$ 800 GeV at 1 TeV ILC. Such a value of the cross section can be realized in the minimal supersymmetric standard model (MSSM) with relatively large trilinear stop-stop-Higgs coupling constant. Implication of the stoponium cross section measurement for the MSSM stop sector is also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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