Search for New Heavy Particles Decaying to Z^0 Z^0 -> eeee in p-pbar Collisions at sqrt(s) = 1.96 TeV

Details Search for New Heavy Particles Decaying to Z^0 Z^0 -> eeee in p-pbar Collisions at sqrt(s) = 1.96 TeV Search for New Heavy Particles Decaying to Z^0 Z^0 -> eeee in p-pbar Collisions at sqrt(s) = 1.96 TeV

2008-01-07

arxiv.org/abs/0801.1129v1

Phys.Rev.D78:012008,2008

Physics

High Energy Physics

High Energy Physics - Experiment

submitted to Phys. Rev. D

Scientific paper

10.1103/PhysRevD.78.012008

We report the results of a search for the anomalous production of a massive particle decaying to four electrons via two Z^0 bosons in 1.1 fb^{-1} of p-pbar collisions at sqrt(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/c^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 times BF(G -> Z^0 Z^0) < 4 - 6 pb, depending on the graviton mass.

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