This article reports on a search for dijet resonances using 132 fb−1 of pp collision data recorded at (Formula presented) ¼ 13 TeV by the ATLAS detector at the Large Hadron Collider. The search is performed solely on jets reconstructed within the ATLAS trigger to overcome bandwidth limitations imposed on conventional single-jet triggers, which would otherwise reject data from decays of sub-TeV dijet resonances. Collision events with two jets satisfying transverse momentum thresholds of pT ≥ 85 GeV and jet rapidity separation of jy*j < 0.6 are analysed for dijet resonances with invariant masses from 375 to 1800 GeV. A data-driven background estimate is used to model the dijet mass distribution from multijet processes. No significant excess above the expected background is observed. Upper limits are set at 95% confidence level on coupling values for a benchmark leptophobic axial-vector Z0 model and on the production cross section for a new resonance contributing a Gaussian-distributed line-shape to the dijet mass distribution.

Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N. j., et al. (2025). Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in 132  fb−1 of 𝑝⁢𝑝 collisions at √𝑠 =13  TeV. PHYSICAL REVIEW D, 112(9) [10.1103/15p2-bkg8].

Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in 132  fb−1 of 𝑝⁢𝑝 collisions at √𝑠 =13  TeV

Di Micco, B.;Di Nardo, R.;Montereali, F.;Orestano, D.;Orlandini, R.;
2025-01-01

Abstract

This article reports on a search for dijet resonances using 132 fb−1 of pp collision data recorded at (Formula presented) ¼ 13 TeV by the ATLAS detector at the Large Hadron Collider. The search is performed solely on jets reconstructed within the ATLAS trigger to overcome bandwidth limitations imposed on conventional single-jet triggers, which would otherwise reject data from decays of sub-TeV dijet resonances. Collision events with two jets satisfying transverse momentum thresholds of pT ≥ 85 GeV and jet rapidity separation of jy*j < 0.6 are analysed for dijet resonances with invariant masses from 375 to 1800 GeV. A data-driven background estimate is used to model the dijet mass distribution from multijet processes. No significant excess above the expected background is observed. Upper limits are set at 95% confidence level on coupling values for a benchmark leptophobic axial-vector Z0 model and on the production cross section for a new resonance contributing a Gaussian-distributed line-shape to the dijet mass distribution.
2025
Aad, G., Aakvaag, E., Abbott, B., Abdelhameed, S., Abeling, K., Abicht, N. j., et al. (2025). Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in 132  fb−1 of ��⁢�� collisions at √�� =13  TeV. PHYSICAL REVIEW D, 112(9) [10.1103/15p2-bkg8].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11590/544925
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