Trinification can explain the di-photon and di-boson LHC anomalies

TL;DR

This paper proposes that trinification grand unified theories can simultaneously explain the LHC's observed diphoton and diboson anomalies through predicted new particles and interactions.

Contribution

It introduces trinification as a unified framework that accounts for both anomalies with specific new particles and interactions, aligning with existing constraints.

Findings

A 750 GeV scalar can explain the diphoton excess.

A 1.9 TeV $W_R^ ext{±}$ can account for the diboson excess.

Predicted extra fermions satisfy all experimental constraints.

Abstract

LHC data show a diphoton excess at 750 GeV and a less significant diboson excess around 1.9 TeV. We propose trinification as a common source of both anomalies. The 1.9 TeV excess can be produced by the lightest extra vector: a $W_R^\pm$ with a gauge coupling $g_R\approx 0.44$ that does not decay into leptons. Furthermore, trinification predicts extra scalars. One of them can reproduce the $\gamma\gamma$ excess while satisfying constraints from all other channels, given the specific set of extra fermions predicted by trinification.