Probing electroweak boson self-interactions with ATLAS

<!--HTML--><p><span><span>Measurements of multiboson production at the LHC probe the electroweak gauge structure of the Standard Model for contributions from anomalous couplings. Processes involving quartic gauge-boson self-interactions have only become experimentally accessible with the LHC Run-2 data through the study of electroweak diboson and triboson production. In this seminar, recent ATLAS results on the measurement of electroweak production of a Zgamma pair in association with two jets and the first observation of three W boson production are presented. <span><span><span><span><span>Moreover, precise boson and diboson differential cross-section measurements are interpreted in a combined&nbsp; Effective Field Theory analysis, allowing to systematically probe gauge boson self-interactions.</span></span></span></span></span></span></span></p> LHC Seminar - ATLAS: https://cern.zoom.us/j/65446136955?pwd=ZzRlVDhaT2cxelRxTVRZUjNubS90dz09