论文标题
与CMS Diphoton和Ditau过量的NMSSM中的Light Higgs玻色子
Light Higgs boson in the NMSSM confronted with the CMS diphoton and ditau excesses
论文作者
论文摘要
2018年，CMS协作报告了Di-Photon过量的95.3 GEV，其局部意义为2.8 $σ$。有趣的是，CMS合作还报告了Di-Tau的超额额度为95 $ \ sim $ 100 GEV，其局部意义为2.6 $ \ sim $ 3.1 $σ$。此外，据报道，$ b \ bar {b} $超过98 GEV，大约二十年前的LEP数据报告了2.3 $σ$的局部意义。在这项工作中，我们考虑将这些过量的人与近临界超对称标准模型（NMSSM）中的光中的玻色子一起解释。我们得出的结论是，在NMSSM中，95 $ \ sim $ 100 GEV过量很难同时满足（在全球范围内无法以$1σ$级别，或同时以$2σ$级别的同时可能无法满足），我们分析了两个部分满意的方案：全球范围内$2σ$ scepario and di-photon scepario。得出了与三个过度拟合的全局拟合的近似方程，并详细分析了两种代表性的幸存样本类型。由于这些过剩的质量区域在Z玻色子附近，因此我们还考虑检查$ t \ bar {t} $相关的频道中的光希格斯玻色子。详细的结果对于将来进一步检查低质量区域可能很有用。
In 2018, the CMS collaboration reported a di-photon excess around 95.3 GeV with a local significance of 2.8 $σ$. Interestingly, the CMS collaboration also reported a di-tau excess recently at 95 $\sim$ 100 GeV with a local significance of 2.6 $\sim$ 3.1 $σ$. Besides, a $b\bar{b}$ excess at 98 GeV with a 2.3 $σ$ local significance was reported with LEP data about twenty years ago. In this work, we consider interpreting these excesses together with a light Higgs boson in the next-to-minimal supersymmetric standard model (NMSSM). We conclude that in NMSSM the 95 $\sim$ 100 GeV excesses are difficult to be satisfied simultaneously (not possible globally at $1σ$ level, or simultaneously at $2σ$ level), and we analyze two partial-satisfied scenarios: the globally $2σ$ scenario and small di-photon scenario. An approximate equation of global fit to the three excesses is derived, and two representative types of surviving samples are analyzed in detail. Since the mass regions of these excesses are near the Z boson, we also consider checking the light Higgs boson in the $t\bar{t}$-associated channels. The detailed results may be useful for further checking the low-mass-region excesses in the future.
