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Search for resonant production of tt[over ¯] decaying to jets in pp[over ¯] collisions at sqrt[s]=1.96 TeV
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(2011) Search for resonant production of tt[over ¯] decaying to jets in pp[over ¯] collisions at sqrt[s]=1.96 TeV. Physical Review D, Vol.84 (No. 7). doi:10.1103/PhysRevD.84.072003 Research output not available from this repository, contact author.
Official URL: http://dx.doi.org/10.1103/PhysRevD.84.072003
Abstract
This paper reports a search for nonstandard model topquark resonances, Z′, decaying to tt̅ →W+bW-b̅ , where both W decay to quarks. We examine the top-antitop quark invariant mass spectrum for the presence of narrow resonant states. The search uses a data sample of pp̅ collisions at a center of mass energy of 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 2.8 fb-1. No evidence for top-antitop quark resonant production is found. We place upper limits on the production cross section times branching ratio for a specific topcolor assisted technicolor model in which the Z′ has a width of ΓZ′=0.012MZ′. Within this model, we exclude a Z′ boson with masses below 805 GeV/c2 at the 95% confidence level.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science > Physics | ||||
| Journal or Publication Title: | Physical Review D | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1550-7998 | ||||
| Official Date: | 2011 | ||||
| Dates: |
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| Volume: | Vol.84 | ||||
| Number: | No. 7 | ||||
| DOI: | 10.1103/PhysRevD.84.072003 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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