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Last updated on 2023-08-25 17:14
Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
A search is reported for excited $\tau$-leptons and leptoquarks in events with two hadronically decaying $\tau$-leptons and two or more jets.
The search uses proton-proton collision data at $\sqrt{s} = 13~\mathrm{TeV}$ recorded by the ATLAS experiment during the Run 2 of the Large Hadron Collider in 2015-2018.
The total integrated luminosity is 139 fb$^{-1}$.
The excited $\tau$-lepton is assumed to be produced and to decay via a four-fermion contact interaction into an ordinary $\tau$-lepton and a quark-antiquark pair.
The leptoquarks are assumed to be produced in pairs via the strong interaction, and each leptoquark is assumed to couple to a charm or lighter quark and a $\tau$-lepton.
No excess over the background prediction is observed.
Excited $\tau$-leptons with masses below 2.8 TeV are excluded at 95% CL in scenarios with the contact interaction scale $\Lambda$ set to 10 TeV.
At the extreme limit of model validity where $\Lambda$ is set equal to the excited $\tau$-lepton mass, excited $\tau$-leptons with masses below 4.6 TeV are excluded.
Leptoquarks with masses below 1.3 TeV are excluded at 95% CL if their branching ratio to a charm quark and a $\tau$-lepton equals 1.
The analysis does not exploit flavour-tagging in the signal region.
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When using this data, please cite the original publication:
ATLAS
Collaboration
(2023).
Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. JHEP 06 (2023) 199.
Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. HEPData (collection).
https://doi.org/10.17182/hepdata.141537
or, if you prefer, a specific version of the
record:
ATLAS
Collaboration
(2023).
Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector (Version 1). HEPData (collection).
https://doi.org/10.17182/hepdata.141537.v1
You can also cite the 6 data
tables
individually.
Data tables
Choose table:
ATLAS
Collaboration
(2023).
“Limits on the excited tau production cross-section” of “Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.141537.v1/t1
ATLAS
Collaboration
(2023).
“Limits on the contact interaction scale $\Lambda$.” of “Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.141537.v1/t2
ATLAS
Collaboration
(2023).
“Limits on the LQ production cross-section” of “Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.141537.v1/t3
ATLAS
Collaboration
(2023).
“Signal Region Cutflow” of “Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.141537.v1/t4
ATLAS
Collaboration
(2023).
“Acceptance x efficiency of the $\tau^\ast$ signal SR selection” of “Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.141537.v1/t5
ATLAS
Collaboration
(2023).
“Acceptance x efficiency of the LQ signal SR selection” of “Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector” (Version 1). HEPData (dataset).
https://doi.org/10.17182/hepdata.141537.v1/t6
When using this data, please cite the original publication:
ATLAS
Collaboration
(2023).
Search for excited $\tau$-leptons and leptoquarks in the final state with $\tau$-leptons and jets in pp collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector. JHEP 06 (2023) 199.
or, if you prefer, a specific version of the
record:
You can also cite the 6 data
tables
individually.
Data tables
Choose table:
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