Minimal Dilaton Model and the Diphoton Excess

TL;DR

This paper explores the Minimal Dilaton Model as a potential explanation for the 750 GeV diphoton excess observed at the LHC, incorporating constraints from various experimental data and discussing future phenomenological implications.

Contribution

It demonstrates that the Minimal Dilaton Model, with additional top partners, can account for the diphoton excess while satisfying existing experimental constraints.

Findings

Model explains 750 GeV diphoton excess with TeV-scale top partners.

Constraints from electroweak tests and Higgs data are satisfied.

Predicts new phenomenology for future LHC runs.

Abstract

In light of the recent 750 GeV diphoton excesses reported by the ATLAS and CMS collaborations, we investigate the possibility of explaining this excess using the Minimal Dilaton Model. We find that this model is able to explain the observed excess with the presence of additional top partner(s), with same charge as the top quark, but with mass in the TeV region. First, we constrain model parameters using in addition to the 750 GeV diphoton signal strength, precision electroweak tests, single top production measurements, as well as Higgs signal strength data collected in the earlier runs of the LHC. In addition we discuss interesting phenomenolgy that could arise in this model, relevant for future runs of the LHC.