A bound on Universal Extra Dimension Models from up to 2fb^{-1} of LHC Data at 7TeV

TL;DR

This paper uses recent LHC data to set bounds on Universal Extra Dimension models, translating Higgs search results into constraints on Kaluza-Klein and Higgs masses, providing a model-independent limit.

Contribution

It provides the first comprehensive bounds on UED models from LHC Higgs search data, independent of KK mass splitting details.

Findings

Bounds on KK mass M_{KK} and Higgs mass M_H established.

Constraints are insensitive to KK mass splitting and mixing.

Results are complementary to other experimental signatures.

Abstract

The recent up to 2fb^{-1} of data from the ATLAS and CMS experiments at the CERN Large Hadron Collider at 7TeV put an upper bound on the production cross section of a Higgs-like particle. We translate the results of the H -> WW -> l nu l nu and H -> gamma gamma as well as the combined analysis by the ATLAS and CMS into an allowed region for the Kaluza-Klein (KK) mass M_{KK} and the Higgs mass $M_H$ for all the known Universal Extra Dimension (UED) models in five and six dimensions. Our bound is insensitive to the detailed KK mass splitting and mixing and hence complementary to all other known signatures.