Speakers
Georg Ralf Weiglein
(Deutsches Elektronen-Synchrotron (DE))
Sven Heinemeyer
(CSIC (Madrid, ES))
Thomas Biekoetter
Description
The ATLAS collaboration has recently reported the results of a low-mass Higgs-boson search in the di-photon final state based on the full Run 2 data set. The largest "excess" is observed at 95.4 GeV with a significance of 1.7 $\sigma$. At exactly the same mass in the same channel CMS reported earlier an excess of 2.9 $\sigma$. Other excesses at about the same mass have been published by LEP in the $b \bar b$ channel at 2 $\sigma$ and by CMS in the $\tau\tau$ decay channel at 2.4 $\sigma$. We demonstrate that these excesses can be accomodated in the Two Higgs doublet model with an additional complex singlet (S2HDM). We discuss the prospects to analyze this scenario at the HL-LHC and future $e^+e^-$ colliders.
Authors
Georg Ralf Weiglein
(Deutsches Elektronen-Synchrotron (DE))
Sven Heinemeyer
(CSIC (Madrid, ES))
Thomas Biekoetter
