Observation of Wγγ triboson production in proton-proton collisions at √s = 13 TeV with the ATLAS detector
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 leptonic...
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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Corporate Author: | |
| Format: | Article (Journal) |
| Language: | English |
| Published: |
January 2024
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| In: |
Physics letters
Year: 2024, Volume: 848, Pages: 1-24 |
| ISSN: | 1873-2445 |
| DOI: | 10.1016/j.physletb.2023.138400 |
| Online Access: | Verlag, kostenfrei, Volltext: https://doi.org/10.1016/j.physletb.2023.138400 Verlag, kostenfrei, Volltext: https://www.sciencedirect.com/science/article/pii/S0370269323007335 
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| Author Notes: | the ATLAS Collaboration* |
MARC
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| 245 | 1 | 0 | |a Observation of Wγγ triboson production in proton-proton collisions at √s = 13 TeV with the ATLAS detector |c the ATLAS Collaboration* |
| 246 | 3 | 0 | |a sqrt |
| 246 | 3 | 3 | |a Observation of W gamma gamma triboson production in proton-proton collisions at square root s = 13 TeV with the ATLAS detector |
| 264 | 1 | |c January 2024 | |
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| 500 | |a Online verfügbar: 14. Dezember 2023, Artikelversion: 20. Dezember 2023 | ||
| 500 | |a *The ATLAS Collaboration: G. Aad, L.M. Baltes, F. Bartels, M.M. Czurylo, F. Del Rio, S.J. Dittmeier, M. Dunford, S. Franchino, T. Junkermann, M. Klassen, T. Mkrtchyan, P.S. Ott, D.F. Rassloff, S. Rodriguez Bosca, C. Sauer, A. Schoening, H.-C. Schultz-Coulon, V. Sothilingam, R. Stamen, L. Vigani, S.M. Weber, M. Wessels, J. Zinsser [und 2909 weitere Personen] | ||
| 500 | |a Im Titel steht der Buchstabe "s" unter dem Wurzelsymbol | ||
| 500 | |a Gesehen am 17.09.2024 | ||
| 520 | |a 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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