Implications of LHC Searches for Massive Graviton

TL;DR

This paper analyzes LHC search results to constrain the parameter space of massive gravitons, focusing on the Randall-Sundrum model, and discusses implications for related particles like the radion.

Contribution

It provides updated constraints on massive graviton models from LHC data, specifically applying limits to the RS model and exploring radion implications.

Findings

Massive graviton with $k/M_{pl}=0.1$ is excluded below 2.2 TeV

Constraints on radion interaction scale $oxed{ ext{Lambda}_ ext{ ext{phi}}}<13.8$ TeV

Limits are applicable to various models beyond RS

Abstract

With the latest LHC available results, we consider the generic constraints on massive graviton. Both dijet and dilepton resonance searches are used. The limits on parameter space can be applied to many models. As an illustration, we show the constraints for Randall-Sundrum (RS) model. Implications on massive graviton and the coupling strength are discussed. For $k/M_{pl}=0.1$, $M_G<2.2$ TeV region is excluded at 95% confidence level. We also present some interesting implications on the RS radion with respect to the 125 GeV excess at the LHC. For $k/M_{pl}=0.1$, $\Lambda_\phi<13.8$ TeV is excluded where $\Lambda_\phi$ is the scale to charactarize the interaction strengh of radion.