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arXiv 1606.07082hep-ph
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2HDM中的双光子过剩和$h\toτμ$现象

The phenomenology of the di-photon excess and $h\toτμ$ within 2HDM

Aielet Efrati, Jernej F. Kamenik, Yosef Nir

摘要:

在ATLAS和CMS观测到的$m_S=750$ GeV附近的双光子过剩可以解释为来自$S=H$和$A$,它们是第二个希格斯双重态的中性成分。如果是这样的话,那么轻希格斯粒子衰变与标准模型预测的一致性提供了$S\to VV, hZ, hh$衰变速率的上限。另一方面,如果建立了$h\toτμ$衰减,则出现$S\toτμ$衰减速率的下限。要求$Γ_S\lesssim45$ GeV给出了从希格斯基$(Φ_v,Φ_A)$到质量基$(Φ_h,Φ_H)$的旋转角的上限和下限。带有$m_{H^\pm}\simeq750$ GeV的带电标量与顶夸克结合产生,并可衰变为$μ^\pmν$、$τ^\pmν$、$tb$和$W^\pm h$

英文摘要:

The diphoton excess around $m_S=750$ GeV observed at ATLAS and CMS can be interpreted as coming from $S=H$ and $A$, the neutral components of a second Higgs doublet. If so, then the consistency of the light Higgs decays with the Standard Model predictions provides upper bounds on the rates of $S\to VV, hZ, hh$ decays. On the other hand, if $h\toτμ$ decay is established, then a lower bound on the rate of $S\toτμ$ decay arises. Requiring that $Γ_S\lesssim45$ GeV gives both an upper and a lower bound on the rotation angle from the Higgs basis $(Φ_v,Φ_A)$ to the mass basis $(Φ_h,Φ_H)$. The charged scalar, with $m_{H^\pm}\simeq750$ GeV, is produced in association with a top quark, and can decay to $μ^\pmν$, $τ^\pmν$, $tb$ and $W^\pm h$

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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