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Phys. Rev. D 78, 012008 (2008) [11 pages]

Search for new heavy particles decaying to Z0Z0eeee in pp̅ collisions at s=1.96  TeV

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T. Aaltonen et al. CDF Collaboration
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Received 9 January 2008; published 29 July 2008

We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z0 bosons in 1.1  fb-1 of pp̅ collisions at s=1.96  TeV 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 500–1000  GeV/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(GZ0Z0)<4–6  pb, depending on the graviton mass.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.78.012008
DOI:
10.1103/PhysRevD.78.012008
PACS:
12.60.Cn, 13.85.Rm, 14.70.Hp