Searching for and identifying large extra dimensions in dilepton and diphoton final states at the Large Hadron Collider

Abstract

Arkani-Hamed, Dimopoulos and Dvali (ADD) proposed a model in which gravity propagates freely in d extra, compact spatial dimensions. The prospects of discovery and identification of large extra spatial dimensions effects in the process of lepton and photon pair production at the Large Hadron Collider (LHC) were studied. These effects can be found by the specific behavior of the invariant mass distributions of the lepton and photon pairs. Identification of the effects under study in lepton and photon pairs production can be performed with center-egde asymmetry. Discovery and identification reach on the mass scale parameter M S can be obtained for graviton Kaluza -Klein towers in lepton and photon pair production processes at the LHC.