Search for Randall-Sundrum Gravitons in Dilepton and Diphoton Final States

We report the first direct search for the Kaluza-Klein (KK) modes of Randall-Sundrum gravitons using dielectron, dimuon, and diphoton events observed with the D0 detector operating at the Fermilab Tevatron $p\overline{p}$ Collider at $\sqrt{s}=1.96\mathrm{TeV}$. No evidence for resonant production of gravitons has been found in the data corresponding to an integrated luminosity of $\approx 260{\mathrm{pb}}^{-1}$. Lower limits on the mass of the first KK mode at the 95% C.L. have been set between 250 and 785 GeV, depending on its coupling to standard model particles.