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First Search for Multijet Resonances in $\sqrt{s} = 1.96$ TeV $ p\bar{p}$ Collisions
High Energy Physics - Experiment · Submitted 13 May 2011
abstract compiled · 2026-09-23 · no language-model review
The authors' main claim No significant excess outside the top quark mass window is observed in data with an integrated luminosity of 3.2 fb$^{-1}$.
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The abstract, sentence by sentence
We present the first model independent search for three-jet hadronic resonances within multijet events in $\sqrt{s} = 1.96$ TeV $p\bar{p}$ collisions at the Fermilab Tevatron using the CDF II detector. Pair production of supersymmetric gluinos and squarks with hadronic R-parity violating decays is employed as an example of a new physics benchmark for this signature. Selection criteria based on the kinematic properties of an ensemble of jet combinations within each event help to extract signal from copious QCD background. Our background estimates include all-hadronic $t\bar{t}$ decays that have a signature similar to the signal. No significant excess outside the top quark mass window is observed in data with an integrated luminosity of 3.2 fb$^{-1}$. We place 95% confidence level limits on the production cross section $\sigma(p \bar{p} \rightarrow XX^{'}) \times \rm{BR}$($\widetilde{g}\widetilde{g}$$ \rightarrow 3 {\rm jet}+3 {\rm jet})$ where $X, X' = \widetilde{g}, \widetilde{q}$, or $\widetilde{\bar{q}}$, with $\widetilde{q}$, $\widetilde{\bar{q}} \rightarrow \widetilde{g}$ + jet, as a function of gluino mass, in the range of 77 GeV/$c^2$ to 240 GeV/$c^2$.
background contribution method result interpretation main claim
| # | sentence | role | the authors' own work | states the main conclusion | strength |
|---|---|---|---|---|---|
| s0 | We present the first model independent search for three-jet hadronic resonances within multijet events in $\sqrt{s} = 1.96$ TeV $p\bar{p}$ collisions at the Fermilab Tevatron using the CDF II detector. | contribution 1.00 | 0.96 | 0.05 | asserted 0.99 |
| s1 | Pair production of supersymmetric gluinos and squarks with hadronic R-parity violating decays is employed as an example of a new physics benchmark for this signature. | method 0.84 | 0.44 | 0.02 | asserted 0.96 |
| s2 | Selection criteria based on the kinematic properties of an ensemble of jet combinations within each event help to extract signal from copious QCD background. | method 1.00 | 0.88 | 0.02 | asserted 1.00 |
| s3 | Our background estimates include all-hadronic $t\bar{t}$ decays that have a signature similar to the signal. | method 0.94 | 0.83 | 0.02 | asserted 1.00 |
| s4 | No significant excess outside the top quark mass window is observed in data with an integrated luminosity of 3.2 fb$^{-1}$. | result 1.00 | 0.97 | 0.75 | asserted 1.00 |
| s5 | We place 95% confidence level limits on the production cross section $\sigma(p \bar{p} \rightarrow XX^{'}) \times \rm{BR}$($\widetilde{g}\widetilde{g}$$ \rightarrow 3 {\rm jet}+3 {\rm jet})$ where $X, X' = \widetilde{g}, \widetilde{q}$, or $\widetilde{\bar{q}}$, with $\widetilde{q}$, $\widetilde{\bar{q}} \rightarrow \widetilde{g}$ + jet, as a function of gluino mass, in the range of 77 GeV/$c^2$ to 240 GeV/$c^2$. | result 1.00 | 0.97 | 0.68 | asserted 1.00 |
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The paper
Original abstract
We present the first model independent search for three-jet hadronic resonances within multijet events in $\sqrt{s} = 1.96$ TeV $p\bar{p}$ collisions at the Fermilab Tevatron using the CDF II detector. Pair production of supersymmetric gluinos and squarks with hadronic R-parity violating decays is employed as an example of a new physics benchmark for this signature. Selection criteria based on the kinematic properties of an ensemble of jet combinations within each event help to extract signal from copious QCD background. Our background estimates include all-hadronic $t\bar{t}$ decays that have a signature similar to the signal. No significant excess outside the top quark mass window is observed in data with an integrated luminosity of 3.2 fb$^{-1}$. We place 95% confidence level limits on the production cross section $\sigma(p \bar{p} \rightarrow XX^{'}) \times \rm{BR}$($\widetilde{g}\widetilde{g}$$ \rightarrow 3 {\rm jet}+3 {\rm jet})$ where $X, X' = \widetilde{g}, \widetilde{q}$, or $\widetilde{\bar{q}}$, with $\widetilde{q}$, $\widetilde{\bar{q}} \rightarrow \widetilde{g}$ + jet, as a function of gluino mass, in the range of 77 GeV/$c^2$ to 240 GeV/$c^2$.
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References
How the literature uses it
35 arXiv papers cite this in 53 sentences
Papers citing it · 32 sentences without a confident label
Builds on it 4 papers
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In this extension of previous CMS results [ref] using 35of data, events with at least six high-transverse-momentum ($$) jets are investigated for evidence of three-jet resonances using the jet-ensemble technique [ref] .
Search for three-jet resonances in pp collisions at sqrt(s) = 7 TeV · Introduction · 1.00
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To identify the three jets (triplet) produced by gluino decay in these multijet events, we extend the jet ensemble technique [ref] by examining the internal dynamics of multijet events.
Search for pair-produced three-jet resonances in proton-proton collisions at $\sqrt{s} =$ 13 TeV · Event selection · 1.00
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Two different scenarios are considered for this coupling, resulting in both an inclusive search similar to previous analyses [ref] and a new heavy-flavour search.
Searches for light- and heavy-flavour three-jet resonances in pp collisions at sqrt(s) = 8 TeV · Signal event simulation · 0.82
Uses its method or tool 6 papers
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We use the jet-ensemble technique [ref] in this analysis to combine the six highest-jets in each event into all possible unique triplets.
Searches for light- and heavy-flavour three-jet resonances in pp collisions at sqrt(s) = 8 TeV · Event selection · 1.00
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The method in [ref] uses a correlation between the sum of the transverse momentum ($p_T,jjj$) and the invariant mass ($M_jjj$) of three jets to select a phase space region with a high number of signal relative to combinatorial and QCD background events.
Boosted Multijet Resonances and New Color-Flow Variables · Introduction · 0.96
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We apply the technique of Refs. [ref] : we find that forming all $γjj$ triplets and requiring $M(γjj) < ∑_γ,j,j p_T - 75$ GeV brings out features from the combinatoric background.
Stealth Supersymmetry · False Resonances · 1.00
Uses its data or values 2 papers
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Indeed, the bounds provided by LHC for such gluinos apply only for $m_g̃ ≥100$ GeV [ref] while the lowest mass reach of $m_g̃ = 77$ GeV is provided by CDF detector at Tevatron [ref] .
Closing the light gluino gap with electron-proton colliders · Light Gluinos · 0.96
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Masses between 77 GeV and $∼100$ GeV are ruled out by a CDF search [ref] , provided that $M_Z'$ is not so small that the jets overlap.
Hidden GeV-scale interactions of quarks · Introduction · 0.80
Compares with it 3 papers
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The sensitivity to gluinos in searches using scouting data is better than searches performed by the CDF Experiment at the Tevatron [ref] and other searches by LHC experiments [ref] , achieving both a lower mass reach and lower cross section limits as shown in Fig. [ref].
Enriching the physics program of the CMS experiment via data scouting and data parking · Searches in hadronic final states · 1.00
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Our suggested analysis strategy with aggressive cuts on these variables can be competitive with existing search strategies [ref] , while providing nearly independent systematic uncertainties.
Boosted Multijet Resonances and New Color-Flow Variables · Conclusions · 0.96
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These are complementary to recent results from the Tevatron, which rule out gluino masses below 144 GeV/$c^2$ [ref] , and these limits are the first from a dedicated search of this kind in collisions.
Search for Three-Jet Resonances in pp Collisions at sqrt(s) = 7 TeV · Introduction · 0.99
Cites it as background 6 papers
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The pair production of three-jet resonances has also been searched for by CDF [ref] and CMS [ref] .
A Collective Breaking of R-Parity · Trijets in CRPV · 0.91
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Searches for pairs of BSM particles, each decaying to three resolved jets, have been performed by the CDF [ref] , ATLAS [ref] , and CMS [ref] Collaborations.
Searches for pair-produced multijet resonances using data scouting in proton-proton collisions at $\sqrt{s}$ = 13 TeV · Introduction · 0.86
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New resonances and contact interactions have been searched for by ATLAS and CMS in final states with two jets [ref] , four jets [ref] , six jets [ref] , eight jets [ref] and up to ten jets for the semi-classical black holes searches [ref] .
Scale-invariant resonance tagging in multijet events and new physics in Higgs pair production · Introduction · 0.89
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