CERN Accelerating science

ATLAS Note
Report number	ATL-PHYS-PROC-2022-016
Title	Measurements of multi-boson production including vector-boson scattering at ATLAS
Author(s)	Liu, Xiaotian (University of Science and Technology of China (CN))
Collaboration	ATLAS Collaboration
Publication	2022
Imprint	08 Mar 2022
Number of pages	6
In:	PoS DISCRETE2020-2021 (2022) 048
In:	7th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE 2020-2021), Bergen, Norway, 29 Nov - 3 Dec 2021, pp.048
DOI	10.22323/1.405.0048
Subject category	Particle Physics - Experiment
Accelerator/Facility, Experiment	CERN LHC ; ATLAS
Free keywords	EWEAK
Abstract	Measurements of multi-boson production at the LHC probe the electroweak gauge structure of the Standard Model for contributions from anomalous couplings. In this proceeding we present recent ATLAS results on the measurement of electroweak production of a Z$\gamma$ pair in association with two jets, the first observation of three W bosons production, as well as the observation of the W pair production in photon-induced collisions. Also discussed is the measurement of differential cross-sections of four-lepton events and constraints on a model based on spontaneously broken B-L gauge symmetry. Moreover, precise boson and di-boson differential cross-section measurements are interpreted in a combined Effective Field Theory analysis, allowing to systematically probe gauge boson self-interactions.
Copyright/License	publication: © 2022-2025 The author(s) (License: CC-BY-NC-ND-4.0)

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