PoS - Proceedings of Science
Volume 450 - The Eleventh Annual Conference on Large Hadron Collider Physics (LHCP2023) - session Poster session
Measurement of Cross Sections of Electroweak and Total Production of $Z\gamma jj$ at 13 TeV with ATLAS
G. Poddar*  on behalf of the ATLAS Collaboration
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Pre-published on: January 16, 2024
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This analysis reports the cross-section measurements of a $Z\gamma$ pair in association with two jets, utilising 140 fb$^{−1}$ of LHC proton–proton collision data collected from 2015–2018. The fiducial cross-section for electroweak production is measured at 3.6$\pm$0.5 fb, with a significance exceeding five standard deviations. Including contributions from strong interactions, the total fiducial cross-section is $16.8^{+2.0}_{-1.8}$ fb. All results align with Standard Model predictions. Differential cross-sections are also measured, exhibiting good agreement with Monte Carlo (MC) predictions.
DOI: https://doi.org/10.22323/1.450.0258
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