Back to Search
Start Over
Measurement of Zγγ production in pp collisions at s=13 TeV with the ATLAS detector.
- Source :
- European Physical Journal C -- Particles & Fields; Jun2023, Vol. 83 Issue 6, p1-30, 30p
- Publication Year :
- 2023
-
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 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 (→ ℓ ℓ) γ γ 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 γ γ 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. [ABSTRACT FROM AUTHOR]
- Subjects :
- Z bosons
PROTON-proton interactions
DETECTORS
MUONS
QUANTUM chromodynamics
PHOTONS
Subjects
Details
- Language :
- English
- ISSN :
- 14346044
- Volume :
- 83
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- European Physical Journal C -- Particles & Fields
- Publication Type :
- Academic Journal
- Accession number :
- 164952674
- Full Text :
- https://doi.org/10.1140/epjc/s10052-023-11579-8