2HDM中的双光子过剩：加速到不稳定性和非微扰区
Di-Photon excess in the 2HDM: hasting towards the instability and the non-perturbative regime
摘要：
我们挑战的双光子过量最近观察到的ATLAS和CMS在两个希格斯双重框架的解释。由于获得所观察到的双光子信号所需的大量增强，需要大量的有色和带电的矢量类费米子。我们发现，甚至在超荷规范耦合变得非微扰之前，这些费米子的单圈效应突然驱动标量势不稳定。
英文摘要：
We challenge the interpretation of the di-photon excess recently observed by both ATLAS and CMS in a two Higgs doublet framework. Due to the large enhancement necessary to obtain the observed di-photon signal, a large number of colored and charged vector-like fermions are called for. We find that even before the hypercharge gauge coupling becomes non perturbative, the one loop effects of these fermions abruptly drive the scalar potential to instability.
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