Measurement of $Z\gamma \gamma $ production in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
2023-06-27 | journal article
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Measurement of $Z\gamma \gamma $ production in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
Aad, G.; Abbott, B.; Abbott, D. C.; Abeling, K.; Abidi, S. H.; Aboulhorma, A. & Abramowicz, H. et al. (2023)
The European Physical Journal C, 83(6) art. 539. DOI: https://doi.org/10.1140/epjc/s10052-023-11579-8
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Details
- Authors Group
- ATLAS Group
The authors list is uncomplete: - Authors
- Aad, G.; Abbott, B.; Abbott, D. C.; Abeling, K.; Abidi, S. H.; Aboulhorma, A.; Abramowicz, H.; Abreu, H.; Abulaiti, Y.; Zwalinski, L.
- Abstract
- Cross-sections for the production of a Z boson in association with two photons are measured in proton–proton collisions at a centre-of-mass energy of 13 TeV. The data used correspond to an integrated luminosity of 139 fb $^{-1}$ -1 recorded by the ATLAS experiment during Run 2 of the LHC. The measurements use the electron and muon decay channels of the Z boson, and a fiducial phase-space region where the photons are not radiated from the leptons. The integrated $Z(\rightarrow \ell \ell )\gamma \gamma $ cross-section is measured with a precision of 12% and differential cross-sections are measured as a function of six kinematic variables of the $Z\gamma \gamma $ system. The data are compared with predictions from MC event generators which are accurate to up to next-to-leading order in QCD. The cross-section measurements are used to set limits on the coupling strengths of dimension-8 operators in the framework of an effective field theory.
- Issue Date
- 27-June-2023
- Publisher
- Springer Berlin Heidelberg
- Journal
- The European Physical Journal C
- Language
- English