Observation of Wγγ triboson production in proton-proton collisions at √s=13 TeV with the ATLAS detector
PHYSICS LETTERS B, vol.848, 2024 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 848
- Publication Date: 2024
- Doi Number: 10.1016/j.physletb.2023.138400
- Journal Name: PHYSICS LETTERS B
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Chemical Abstracts Core, INSPEC, zbMATH, Directory of Open Access Journals
- Ankara University Affiliated: Yes
Abstract
This letter reports the observation of () production in proton-proton collisions. This measurement uses the full Run 2 sample of events recorded at a center-of-mass energy of root= 13 TeV by the ATLAS detector at the LHC, corresponding to an integrated luminosity of 140 fb-1. Events with a leptonically-decaying boson and at least two photons are considered. The background-only hypothesis is rejected with an observed and expected significance of 5.6 standard deviations. The inclusive fiducial production cross section of () and () events is measured to be fid = 13.8 +/- 1.1(stat)+2.1-2.0(syst) +/- 0.1(lumi) fb, in agreement with the Standard Model prediction.