Observation of Wγγ triboson production in proton-proton collisions at s=13 TeV with the ATLAS detector
(2024) In Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 848.- Abstract
- This letter reports the observation of W(ℓν)γγ production in proton-proton collisions. This measurement uses the full Run 2 sample of events recorded at a center-of-mass energy of s=13 TeV by the ATLAS detector at the LHC, corresponding to an integrated luminosity of 140 fb−1. Events with a leptonically-decaying W 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 W(eν)γγ and W(μν)γγ events is measured to be σfid=13.8±1.1(stat)+2.1−2.0(syst)±0.1(lumi) fb, in agreement with the Standard Model prediction.
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- author
- author collaboration
- organization
- publishing date
- 2024
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
- volume
- 848
- article number
- 138400
- publisher
- Elsevier
- external identifiers
-
- scopus:85184210504
- ISSN
- 0370-2693
- DOI
- 10.1016/j.physletb.2023.138400
- language
- English
- LU publication?
- yes
- id
- 70efd924-2ea1-455d-8cf0-f1a8af1ef74e
- date added to LUP
- 2024-03-12 15:28:21
- date last changed
- 2024-03-12 15:30:02
@article{70efd924-2ea1-455d-8cf0-f1a8af1ef74e, abstract = {{This letter reports the observation of W(ℓν)γγ production in proton-proton collisions. This measurement uses the full Run 2 sample of events recorded at a center-of-mass energy of s=13 TeV by the ATLAS detector at the LHC, corresponding to an integrated luminosity of 140 fb−1. Events with a leptonically-decaying W 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 W(eν)γγ and W(μν)γγ events is measured to be σfid=13.8±1.1(stat)+2.1−2.0(syst)±0.1(lumi) fb, in agreement with the Standard Model prediction.}}, author = {{Aad, G. and Åkesson, T.P.A. and Doglioni, C. and Hedberg, V. and Herde, H. and Konya, B. and Lytken, E. and Poettgen, R. and Simpson, N.D. and Skorda, E. and Smirnova, O. and Zou, W. and Zwalinski, L.}}, issn = {{0370-2693}}, language = {{eng}}, publisher = {{Elsevier}}, series = {{Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics}}, title = {{Observation of Wγγ triboson production in proton-proton collisions at s=13 TeV with the ATLAS detector}}, url = {{http://dx.doi.org/10.1016/j.physletb.2023.138400}}, doi = {{10.1016/j.physletb.2023.138400}}, volume = {{848}}, year = {{2024}}, }