BibSonomy :: publication :: Limits on the Production of Narrow t-tbar Resonances in p-pbar Collisions at sqrts=1.96 TeV

Limits on the Production of Narrow t-tbar Resonances in p-pbar Collisions at sqrts=1.96 TeV

CDF Collaboration, and T. Aaltonen. (2007)cite arxiv:0710.5335Comment: 7 Pages, 3 eps Figures; when using dvips use "-t letter -P pdf" option; To be submitted to Phys. Rev. D Rapid Communications.

@misc{ZprimeLimitsTevatron2007,
  abstract = {We search for evidence of resonant top quark pair production in 955 pb-1 of
p-pbar collisions at sqrt(s)=1.96 TeV recorded with the CDF II detector at the
Fermilab Tevatron. For fully reconstructed candidate t-tbar events triggered on
leptons with large transverse momentum and containing at least one identified
b-quark jet, we compare the invariant mass spectrum of t-tbar pairs to the
expected superposition of standard model t-tbar, non-t-tbar backgrounds, and a
simple resonance model based on a sequential Z' boson. We establish upper
limits for sigma(p-pbar to Z') times Br(Z' to t-tbar) in the Z' mass interval
from 450 GeV/c2 to 900 GeV/c2. A topcolor leptophobic Z' is ruled out below 720
GeV/c2, and the cross section of any narrow Z'-like state decaying to t-tbar is
found to be less than 0.64 pb at 95% C.L. for M(Z') above 700 GeV/c2.},
  added-at = {2012-10-15T14:29:12.000+0200},
  author = {Collaboration, CDF and Aaltonen, T.},
  biburl = {http://www.bibsonomy.org/bibtex/2d726c6b6bf03dc2daee8a294897feef4/kreczko},
  description = {Limits on the Production of Narrow t-tbar Resonances in p-pbar
  Collisions at sqrt(s)=1.96 TeV},
  doi = {10.1103/PhysRevD.77.051102},
  interhash = {a32f99507ae863d3373940cb1e337ebe},
  intrahash = {d726c6b6bf03dc2daee8a294897feef4},
  keywords = {Zprime quark top},
  note = {cite arxiv:0710.5335Comment: 7 Pages, 3 eps Figures; when using dvips use "-t letter -P pdf"  option; To be submitted to Phys. Rev. D Rapid Communications},
  timestamp = {2012-10-15T14:29:12.000+0200},
  title = {Limits on the Production of Narrow t-tbar Resonances in p-pbar
  Collisions at sqrt(s)=1.96 TeV},
  url = {http://arxiv.org/abs/0710.5335},
  year = 2007
}

%0 Generic
%1 ZprimeLimitsTevatron2007
%A Collaboration, CDF
%A Aaltonen, T.
%D 2007
%K 
%T Limits on the Production of Narrow t-tbar Resonances in p-pbar
  Collisions at sqrt(s)=1.96 TeV
%R 10.1103/PhysRevD.77.051102
%U http://arxiv.org/abs/0710.5335
%X We search for evidence of resonant top quark pair production in 955 pb-1 of
p-pbar collisions at sqrt(s)=1.96 TeV recorded with the CDF II detector at the
Fermilab Tevatron. For fully reconstructed candidate t-tbar events triggered on
leptons with large transverse momentum and containing at least one identified
b-quark jet, we compare the invariant mass spectrum of t-tbar pairs to the
expected superposition of standard model t-tbar, non-t-tbar backgrounds, and a
simple resonance model based on a sequential Z' boson. We establish upper
limits for sigma(p-pbar to Z') times Br(Z' to t-tbar) in the Z' mass interval
from 450 GeV/c2 to 900 GeV/c2. A topcolor leptophobic Z' is ruled out below 720
GeV/c2, and the cross section of any narrow Z'-like state decaying to t-tbar is
found to be less than 0.64 pb at 95% C.L. for M(Z') above 700 GeV/c2.

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DOI:	10.1103/PhysRevD.77.051102
URL:	http://arxiv.org/abs/0710.5335
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BibTeX key:	ZprimeLimitsTevatron2007

abstract

We search for evidence of resonant top quark pair production in 955 pb-1 of p-pbar collisions at sqrts=1.96 TeV recorded with the CDF II detector at the Fermilab Tevatron. For fully reconstructed candidate t-tbar events triggered on leptons with large transverse momentum and containing at least one identified b-quark jet, we compare the invariant mass spectrum of t-tbar pairs to the expected superposition of standard model t-tbar, non-t-tbar backgrounds, and a simple resonance model based on a sequential Z' boson. We establish upper limits for sigmap-pbar to Z' times BrZ' to t-tbar in the Z' mass interval from 450 GeV/c2 to 900 GeV/c2. A topcolor leptophobic Z' is ruled out below 720 GeV/c2, and the cross section of any narrow Z'-like state decaying to t-tbar is found to be less than 0.64 pb at 95% C.L. for MZ' above 700 GeV/c2.

Description

Limits on the Production of Narrow t-tbar Resonances in p-pbar Collisions at sqrt(s)=1.96 TeV

publication post of kreczko

Limits on the Production of Narrow t-tbar Resonances in p-pbar Collisions at sqrts=1.96 TeV

discussion

resources (URL, PDF, ...)

abstract

Description