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Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in 132 fb of pp collisions at (Formula presented) = 13 TeV
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Search for electroweak-scale dijet resonances using trigger-level analysis with the ATLAS detector in 132 fb of pp collisions at (Formula presented) = 13 TeV

G. Aad, G. Aad, E. Aakvaag, B. Abbott, S. Abdelhameed, K. Abeling, N. J. Abicht, S. H. Abidi, M. Aboelela, A. Aboulhorma, …
Physical review. D, 卷.112(9), 092015
24/11/2025
Web of Science ID: WOS:001641102600001

摘要

<p>This article reports on a search for dijet resonances using 132 fb(-1) of pp collision data recorded at root s = 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 p(T) >= 85 GeV and jet rapidity separation of (sic)y(sic) < 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 Z' model and on the production cross section for a new resonance contributing a Gaussian-distributed line-shape to the dijet mass distribution.</p>

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