Search for New Dielectron Resonances and Randall-Sundrum Gravitons at the Collider Detector at Fermilab.

Abstract

A search for new dielectron-mass resonances using data recorded by the CDF II detector and corresponding to an integrated luminosity of 5:7 fb1 is presented. No significant excess over the expected standard model prediction is observed. In this data set, an event with the highest dielectron mass ever observed (960 GeV=c2) was recorded. The results are interpreted in the Randall-Sundrum (RS) model. Combined with the 5:4 fb1 diphoton analysis, the RS-graviton lower-mass limit for the coupling