Search for Long-Lived Parents of Z Bosons in pbar-p Collisions at sqrt{s}=1.8 TeV

Details Search for Long-Lived Parents of Z Bosons in pbar-p Collisions at sqrt{s}=1.8 TeV Search for Long-Lived Parents of Z Bosons in pbar-p Collisions at sqrt{s}=1.8 TeV

1998-05-15

arxiv.org/abs/hep-ex/9805017v1

Phys.Rev.D58:051102,1998

Physics

High Energy Physics

High Energy Physics - Experiment

9 pages (submitted to Phys. Rev. D Rapid Communications) http://www-cdf.fnal.gov/physics/pub98/cdf4460_long_lived_Z_parents.ps

Scientific paper

10.1103/PhysRevD.58.051102

We search for new long-lived particles which decay to Z bosons by looking for Z->e+e- decays with displaced vertices. We find no evidence for parent particles of the Z with long lifetimes in 90 pb-1 of data from the CDF experiment at Fermilab. We set a cross section limit as a function of the lifetime of the parent particle for both a generic Z parent and a fourth-generation, charge -1/3 quark that decays into Z+b.

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