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arXiv 1808.00682hep-ph
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中性希格斯玻色子在NMSSM中衰变的前景

Prospects of Neutral Higgs boson decays in the NMSSM

M. M. Almarashi

摘要:

本文在非极小超对称标准模型(NMSSM)下给出了两个最轻CP偶希格斯粒子$h_1$和$h_2$以及最轻CP奇希格斯粒子$a_1$的分支比.我们发现在参数空间的某些区域,$a_1$到最轻电荷伴子($a_1\to χ^+_1χ^-_1)$)和中性伴子($a_1\to χ^0_1χ^0_1)$)的分支分数大于$50\%$,并且在后一种情况下可以达到$100 \%$水平.此外,当$h_2\to a_1a_1$是纯单线态时,对于所有质量的$h_2$,其分支比可以等于1。上述不寻常的渠道是NMSSM存在的标志。

英文摘要:

In this paper, we present the branching ratios of the two lightest CP-even Higgses, $h_1$ and $h_2$, and of the lightest CP-odd Higgs, $a_1$, in the context of the Non-Minimal Supersymmetric Standard Model (NMSSM). We find that for some regions of the parameter space, the branching fractions of $a_1$ into the lightest charginos ($a_1\to χ^+_1χ^-_1)$ and neutralinos ($a_1\to χ^0_1χ^0_1)$ are larger than $50\%$, and can reach a $100 \%$ level in the latter case. Furthermore, the branching ratio of the $h_2\to a_1a_1$ can be equal to unity for all masses of $h_2$ when it is a pure singlet. The above unusual channels are hallmarks of the existence of the NMSSM.

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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