Search for a leptoquark in events with a hadronically decaying $τ$-lepton and missing transverse momentum using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
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arXiv
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| Format: | Preprint |
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2026
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| _version_ | 1866914622866456576 |
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| author | ATLAS Collaboration |
| author_facet | ATLAS Collaboration |
| contents | A search for leptoquark signals is performed in final states with a hadronically decaying $τ$-lepton and missing transverse momentum, using data from proton--proton collisions at a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded by the ATLAS detector at the Large Hadron Collider during Run 2 (2015--18), corresponding to an integrated luminosity of 140 fb$^{-1}$. The analysis is designed to probe both resonant production and non-resonant $t$-channel exchange of the leptoquark, covering a wide range of coupling scenarios. No excess above the Standard Model background prediction is observed. Limits are set on the couplings in the benchmark $U_1$ vector-leptoquark model at 95% confidence level for masses between 1.5 TeV and 3.0 TeV. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2606_02067 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Search for a leptoquark in events with a hadronically decaying $τ$-lepton and missing transverse momentum using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector ATLAS Collaboration High Energy Physics - Experiment A search for leptoquark signals is performed in final states with a hadronically decaying $τ$-lepton and missing transverse momentum, using data from proton--proton collisions at a centre-of-mass energy of $\sqrt{s}=13$ TeV recorded by the ATLAS detector at the Large Hadron Collider during Run 2 (2015--18), corresponding to an integrated luminosity of 140 fb$^{-1}$. The analysis is designed to probe both resonant production and non-resonant $t$-channel exchange of the leptoquark, covering a wide range of coupling scenarios. No excess above the Standard Model background prediction is observed. Limits are set on the couplings in the benchmark $U_1$ vector-leptoquark model at 95% confidence level for masses between 1.5 TeV and 3.0 TeV. |
| title | Search for a leptoquark in events with a hadronically decaying $τ$-lepton and missing transverse momentum using $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector |
| topic | High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2606.02067 |