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Phys. Rev. Lett. 100, 231801 (2008) [7 pages]

Search for Resonant tt̅ Production in pp̅ Collisions at s=1.96  TeV

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T. Aaltonen et al. CDF Collaboration
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Received 6 September 2007; published 11 June 2008

We report on a search for narrow-width particles decaying to a top and antitop quark pair. The data set used in the analysis corresponds to an integrated luminosity of 680  pb-1 collected with the Collider Detector at Fermilab in run II. We present 95% confidence level upper limits on the cross section times branching ratio. Assuming a specific top-color-assisted technicolor production model, the leptophobic Z with width ΓZ=0.012MZ, we exclude the mass range MZ<725  GeV/c2 at the 95% confidence level.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.100.231801
DOI:
10.1103/PhysRevLett.100.231801
PACS:
13.85.Rm, 12.60.Cn, 12.60.Nz, 14.70.Pw