Search for new heavy particles decaying to Z0Z0→eeee in pp̄ collisions at s=1.96TeV

We report the results of a search for the anomalous production of a massive particledecaying to four electrons via two Z{sup 0} bosons in 1.1 fb{sup -1} of p{bar p} collisions at {radical}s =1.96 TeV collected by the CDF II detector at Fermilab. We employ optimized electron identificationcriteria to maximize acceptance and efficiency. We estimate the backgrounds in the invariant massrange 500-1000 GeV/c{sup 2} to be 0.028 {+-} 0.009 (stat) {+-} 0.011 (syst) events. We observe zero events in this search region. Assuming a Randall-Sundrum graviton production model, we set 95% CL limits on {sigma} x BF(G {yields} Z{sup 0}Z{sup 0}) < 4-6 pb, depending on the gravitonmass.