Explaining ATLAS and CMS Results Within the Reduced Minimal 3-3-1 model

TL;DR

This paper investigates whether the reduced minimal 3-3-1 model can explain the observed Higgs boson signals and excesses at the LHC, providing an alternative to the Standard Model.

Contribution

It demonstrates that the reduced minimal 3-3-1 model can plausibly account for the Higgs data and predicts new scalar particles consistent with experimental results.

Findings

The model fits the ATLAS and CMS signal strengths at a few TeV scale.

It explains the excess in the $h ightarrow \gamma \gamma$ channel.

Predicted properties of heavy neutral and doubly charged scalars.

Abstract

Recently the ATLAS and CMS collaborations announced the discovery of a higgs particle with a mass of $\sim 125$ GeV. The results are mildly consistent with the Standard Model Higgs boson. However, the combined data from these collaborations seem to point to an excess in the $h \rightarrow \gamma \gamma$ channel. In this work we analyze under which conditions this excess may be plausibly explained within the reduced minimal 3-3-1 model, while being consistent with bb, WW, ZZ and $\tau^+\tau^-$ channels. Moreover, we derive the properties of the heavy neutral and the doubly charged scalars predicted by the model. We then conclude that at a scale of a few TeV, this model provides a good fit to the ATLAS and CMS signal strength measurements, and therefore stands as an appealing alternative to the standard model.