This paper presents a study of Z→llγ decays with the ATLAS detector at the Large Hadron Collider. The analysis uses a proton–proton data sample corresponding to an integrated luminosity of 20.2 fb-1 collected at a centre-of-mass energy s = 8 TeV. Integrated fiducial cross-sections together with normalised differential fiducial cross-sections, sensitive to the kinematics of final-state QED radiation, are obtained. The results are found to be in agreement with state-of-the-art predictions for final-state QED radiation. First measurements of Z→llγγ decays are also reported.
Study of Z→llγ decays at s = 8 TeV with the ATLAS detector / Add, G., Aloisio, A., Alviggi, M., Canale, V., Cirotto, F., Della Pietra, M., Merola, L., Massarotti, P., Rossi, E., Conventi, F., Izzo, V., Sekhniaidze, G.G., Iengo, P., Di Donato, C., De Asmundis, R., Carlino, G., Loffredo, S., Al, E.t.. - In: THE EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6044. - 84:2(2024). [10.1140/epjc/s10052-024-12471-9]
Study of Z→llγ decays at s = 8 TeV with the ATLAS detector
A. Aloisio;M. Alviggi;V. Canale;F. Cirotto;M. Della Pietra;P. Massarotti;E. Rossi;S. Loffredo;
2024
Abstract
This paper presents a study of Z→llγ decays with the ATLAS detector at the Large Hadron Collider. The analysis uses a proton–proton data sample corresponding to an integrated luminosity of 20.2 fb-1 collected at a centre-of-mass energy s = 8 TeV. Integrated fiducial cross-sections together with normalised differential fiducial cross-sections, sensitive to the kinematics of final-state QED radiation, are obtained. The results are found to be in agreement with state-of-the-art predictions for final-state QED radiation. First measurements of Z→llγγ decays are also reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
