This paper presents a search for a new $Z^\prime$ resonance decaying into a pair of dark quarks which hadronise into dark hadrons before promptly decaying back to Standard Model particles. This analysis is based on proton-proton collision data recorded at $\sqrt{s}=13$ TeV with the ATLAS detector at the Large Hadron Collider between 2015 and 2018, corresponding to an integrated luminosity of 139 fb$^{-1}$. After selecting events containing large-radius jets with high track multiplicity, the invariant mass distribution of the two leading jets is scanned to look for an excess above a data-driven estimate of the Standard Model multi-jet background. No significant excess of events is observed and the results are thus used to set $95 \%$ confidence-level upper limits on the production cross-section times branching ratio of the $Z^\prime$ to dark quarks as a function of the $Z^\prime$ mass for various dark-quark scenarios.
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Distribution of the di-jet invariant mass, $m_{\mathrm{JJ}}$ for the data, the simulated multi-jet background and of some representative signals (models...
Leading jet number of tracks after preselections
Data from Figure 3a.
10.17182/hepdata.145191.v1/t2
Distributions of the number of tracks associated to the leading jet, $n_{track,1}$, for the data, the simulated multi-jet background and...
Sub-leading jet number of tracks after preselections
Data from Figure 3b.
10.17182/hepdata.145191.v1/t3
Distributions of the number of tracks associated to the subleading jet, $n_{track,2}$, for the data, the simulated multi-jet background and...
Di-jet invariant mass in SR vs. background-only expectation
Data from Figure 6.
10.17182/hepdata.145191.v1/t4
Distribution of $m_{\mathrm{JJ}}$ in the SR (black points) compared to the background-only expectation, where the shape is derived from the...
Observed and expected limits (model A)
Data from Figure 7a.
10.17182/hepdata.145191.v1/t5
Observed and expected limits at 95% CL on the cross-section times branching ratio for the production of dark quarks through...
Theory cross-section times branching ratio (model A)
Data from Figure 7a.
10.17182/hepdata.145191.v1/t6
The predicted theory cross-section times branching ratio for the production of dark quarks through a $Z^\prime$ as a function of...
Observed and expected limits (model B)
Data from Figure 7b.
10.17182/hepdata.145191.v1/t7
Observed and expected limits at 95% CL on the cross-section times branching ratio for the production of dark quarks through...
Theory cross-section times branching ratio (model B)
Data from Figure 7b.
10.17182/hepdata.145191.v1/t8
The predicted theory cross-section times branching ratio for the production of dark quarks through a $Z^\prime$ as a function of...
Observed and expected limits (model C)
Data from Figure 7c.
10.17182/hepdata.145191.v1/t9
Observed and expected limits at 95% CL on the cross-section times branching ratio for the production of dark quarks through...
Theory cross-section times branching ratio (model C)
Data from Figure 7c.
10.17182/hepdata.145191.v1/t10
The predicted theory cross-section times branching ratio for the production of dark quarks through a $Z^\prime$ as a function of...
Observed and expected limits (model D)
Data from Figure 7d.
10.17182/hepdata.145191.v1/t11
Observed and expected limits at 95% CL on the cross-section times branching ratio for the production of dark quarks through...
Theory cross-section times branching ratio (model D)
Data from Figure 7d.
10.17182/hepdata.145191.v1/t12
The predicted theory cross-section times branching ratio for the production of dark quarks through a $Z^\prime$ as a function of...
Cutflow table for signal points
Data from Auxiliary Table 1.
10.17182/hepdata.145191.v1/t13
Relative efficiency (in %) of each stage of the analysis selection with respect to the previous one for models A...
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Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector. HEPData (collection).
https://doi.org/10.17182/hepdata.145191
or, if you prefer, a specific version of the
record:
ATLAS
Collaboration
(2024).
Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector (Version 1). HEPData (collection).
https://doi.org/10.17182/hepdata.145191.v1
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ATLAS
Collaboration
(2024).
“Di-jet invariant mass after preselections” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t1
ATLAS
Collaboration
(2024).
“Leading jet number of tracks after preselections” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t2
ATLAS
Collaboration
(2024).
“Sub-leading jet number of tracks after preselections” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t3
ATLAS
Collaboration
(2024).
“Di-jet invariant mass in SR vs. background-only expectation” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t4
ATLAS
Collaboration
(2024).
“Observed and expected limits (model A)” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t5
ATLAS
Collaboration
(2024).
“Theory cross-section times branching ratio (model A)” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t6
ATLAS
Collaboration
(2024).
“Observed and expected limits (model B)” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t7
ATLAS
Collaboration
(2024).
“Theory cross-section times branching ratio (model B)” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t8
ATLAS
Collaboration
(2024).
“Observed and expected limits (model C)” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t9
ATLAS
Collaboration
(2024).
“Theory cross-section times branching ratio (model C)” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t10
ATLAS
Collaboration
(2024).
“Observed and expected limits (model D)” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t11
ATLAS
Collaboration
(2024).
“Theory cross-section times branching ratio (model D)” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t12
ATLAS
Collaboration
(2024).
“Cutflow table for signal points” of “Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.145191.v1/t13
When using this data, please cite the original publication:
ATLAS
Collaboration
(2024).
Search for Resonant Production of Dark Quarks in the Dijet Final State with the ATLAS Detector. JHEP 02 (2024) 128.
or, if you prefer, a specific version of the
record:
You can also cite the 13 data
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