This Letter reports a search for a narrow resonant state decaying into two
$W$ bosons and a bottom-antibottom quark pair where one $W$ boson decays
leptonically and the other decays into a quark-antiquark pair. The search is
particularly sensitive to top-antitop resonant production. We use the full data
sample of proton-antiproton collisions at a center-of-mass energy of 1.96 TeV
collected by the CDF II detector at the Fermilab Tevatron, corresponding to an
integrated luminosity of 9.45 fb$^-1$. No evidence for resonant production is
found and upper limits on the production cross section times branching ratio
for a narrow resonant state are extracted. Within a specific benchmark model,
we exclude a $Z'$ boson with mass below 915 GeV/$c^2$ decaying into a
top-antitop pair at the 95% credibility level assuming a $Z'$ boson decay width
of $\Gamma_Z' = 0.012 M_Z'$. This is the most sensitive search for a narrow
$q\barq$-initiated $t\bart$ resonance in the mass
region below 750 GeV/$c^2$.
Описание
Search for Resonant Top-antitop Production in the Semi-leptonic Decay
Mode Using the Full CDF Data Set
%0 Generic
%1 CDF_Zprime_2012
%A Collaboration, CDF
%D 2012
%K CDF quark tevatron top zprime
%R 10.1103/PhysRevLett.110.121802
%T Search for Resonant Top-antitop Production in the Semi-leptonic Decay
Mode Using the Full CDF Data Set
%U http://arxiv.org/abs/1211.5363
%X This Letter reports a search for a narrow resonant state decaying into two
$W$ bosons and a bottom-antibottom quark pair where one $W$ boson decays
leptonically and the other decays into a quark-antiquark pair. The search is
particularly sensitive to top-antitop resonant production. We use the full data
sample of proton-antiproton collisions at a center-of-mass energy of 1.96 TeV
collected by the CDF II detector at the Fermilab Tevatron, corresponding to an
integrated luminosity of 9.45 fb$^-1$. No evidence for resonant production is
found and upper limits on the production cross section times branching ratio
for a narrow resonant state are extracted. Within a specific benchmark model,
we exclude a $Z'$ boson with mass below 915 GeV/$c^2$ decaying into a
top-antitop pair at the 95% credibility level assuming a $Z'$ boson decay width
of $\Gamma_Z' = 0.012 M_Z'$. This is the most sensitive search for a narrow
$q\barq$-initiated $t\bart$ resonance in the mass
region below 750 GeV/$c^2$.
@misc{CDF_Zprime_2012,
abstract = {This Letter reports a search for a narrow resonant state decaying into two
$W$ bosons and a bottom-antibottom quark pair where one $W$ boson decays
leptonically and the other decays into a quark-antiquark pair. The search is
particularly sensitive to top-antitop resonant production. We use the full data
sample of proton-antiproton collisions at a center-of-mass energy of 1.96 TeV
collected by the CDF II detector at the Fermilab Tevatron, corresponding to an
integrated luminosity of 9.45 fb$^{-1}$. No evidence for resonant production is
found and upper limits on the production cross section times branching ratio
for a narrow resonant state are extracted. Within a specific benchmark model,
we exclude a $Z'$ boson with mass below 915 GeV/$c^2$ decaying into a
top-antitop pair at the 95% credibility level assuming a $Z'$ boson decay width
of $\Gamma_{Z'} = 0.012 M_{Z'}$. This is the most sensitive search for a narrow
$\ensuremath{q\bar{q}}$-initiated $\ensuremath{t\bar{t}}$ resonance in the mass
region below 750 GeV/$c^2$.},
added-at = {2013-08-07T19:38:39.000+0200},
author = {Collaboration, CDF},
biburl = {https://www.bibsonomy.org/bibtex/2dab2650798db2f6a2b8755c15f0dfd65/kreczko},
description = {Search for Resonant Top-antitop Production in the Semi-leptonic Decay
Mode Using the Full CDF Data Set},
doi = {10.1103/PhysRevLett.110.121802},
interhash = {1f64d5be0ca215c5dd9cecea1a1369e8},
intrahash = {dab2650798db2f6a2b8755c15f0dfd65},
keywords = {CDF quark tevatron top zprime},
note = {arxiv:1211.5363},
timestamp = {2014-07-27T00:02:59.000+0200},
title = {Search for Resonant Top-antitop Production in the Semi-leptonic Decay
Mode Using the Full CDF Data Set},
url = {http://arxiv.org/abs/1211.5363},
year = 2012
}