Search for new heavy particles decaying to Z0Z0→eeee in pp¯ collisions at s=1.96 TeV
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We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z0 bosons in 1.1fb-1 of pp̄ collisions at s=1.96TeV collected by the CDF II detector at Fermilab. We employ optimized electron identification criteria to maximize acceptance and efficiency. We estimate the backgrounds in the invariant mass range 500-1000GeV/c2 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% C.L. limits on σ×BF(G→Z0Z0)<4- 6pb, depending on the graviton mass. © 2008 The American Physical Society.
author list (cited authors)
Aaltonen, T., Adelman, J., Akimoto, T., Albrow, M. G., González, B., Amerio, S., ... Zucchelli, S.