%0 Generic %1 ZprimeLimitsTevatron2007 %A Collaboration, CDF %A Aaltonen, T. %D 2007 %K Zprime quark top %R 10.1103/PhysRevD.77.051102 %T Limits on the Production of Narrow t-tbar Resonances in p-pbar Collisions at sqrt(s)=1.96 TeV %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.

@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 = {https://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 = {2014-07-27T00:02:59.000+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 }