Szczegóły publikacji
Opis bibliograficzny
Evidence of $ZZ\gamma$ production with the ATLAS detector / G. Aad, [et al.], L. ADAMCZYK, [et al.], P. BALEK, [et al.], T. BOŁD, [et al.], K. M. CIEŚLA, [et al.], W. DĄBROWSKI, [et al.], K. DOMIJAN, [et al.], M. DYNDAŁ, [et al.], A. K. GILBERT, [et al.], I. GRABOWSKA-BOŁD, [et al.], S. KOPERNY, [et al.], K. MAJ, [et al.], B. MINDUR, [et al.], Ł. MŁYNARSKA, [et al.], P. A. POTĘPA, [et al.], M. PRZYBYCIEŃ, [et al.], P. RYBCZYŃSKI, [et al.], C. VARNI, [et al.] // Physical Review Letters ; ISSN 0031-9007 . — 2026 — vol. 137 iss. 9 art. no. 091804, s. 091804-1–091804-22. — Bibliogr. s. 091804-6–091804-8, Abstr. — Publikacja dostępna online od: 2026-08-27
Autorzy (2874)
- AGHAdamczyk Leszek
- AGHBalek Petr
- AGHBołd Tomasz
- AGHCieśla Krzysztof
- AGHDąbrowski Władysław
- AGHDyndał Mateusz
- AGHGilbert Alexander
- AGHGrabowska-Bołd Iwona
- AGHKoperny Stefan
- AGHMaj Klaudia
- AGHMindur Bartosz
- AGHMłynarska Łucja
- AGHOgrabek Karolina
- AGHPotępa Patrycja Anna
- AGHPrzybycień Mariusz
- AGHRybczyński Paweł
- AGHVarni Carlo
- Aad Georges
Dane bibliometryczne
| ID BaDAP | 170676 |
|---|---|
| Data dodania do BaDAP | 2026-10-21 |
| Tekst źródłowy | URL |
| DOI | 10.1103/jngg-1nf3 |
| Rok publikacji | 2026 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp | |
| Creative Commons | |
| Czasopismo/seria | Physical Review Letters |
Abstract
This Letter presents the first evidence of the simultaneous production of two Z bosons and one photon with the ATLAS detector at the Large Hadron Collider. The measurement is performed using the full Run-2 dataset, recorded from 2015 to 2018, of proton-proton collisions at a center-of-mass energy of 13 TeV, corresponding to an integrated luminosity of 140 fb^{-1}. The fully leptonic final state with four leptons and one photon is analyzed, pp→ZZγ→ℓ^{+}ℓ^{-}ℓ^{'+}ℓ^{'-}γ with ℓ,ℓ^{'}=e or μ. This final state is measured in a fiducial region where photon final-state radiation is minimized, and the photon has a transverse momentum of p_{T}^{γ}>20 GeV. Eight events are selected, with a background estimate of 0.92±0.15. This results in an observed (expected) significance of the ZZγ final state of 4.4σ (4.0σ). The measured cross section for pp→ZZγ→ℓ^{+}ℓ^{-}ℓ^{'+}ℓ^{'-}γ in the fiducial region is σ_{ZZγ}=0.144_{-0.051}^{+0.065}(stat)_{-0.004}^{+0.008}(syst) fb, in agreement with the standard model prediction of σ_{fid}^{SM}=0.130±0.006 fb.