Search for new heavy particles decaying to Z0Z0→eeee in pp? collisions at s=1.96TeV
Journal
Physical Review D - Particles, Fields, Gravitation and Cosmology
Journal Volume
78
Journal Issue
1
Date Issued
2008
Author(s)
Aaltonen, T. et al. (CDF Collaboration)
Abstract
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.
Type
journal article