ÚTEFČVUT Ústav technické a experimentální fyziky ČVUT v PrazeInstitute of Experimental and Applied Physics, CTU in Prague

Observation of WZγ Production in pp Collisions at √s=13 TeV with the ATLAS Detector

NázevTitle
Observation of WZγ Production in pp Collisions at √s=13 TeV with the ATLAS DetectorObservation of WZγ Production in pp Collisions at √s=13 TeV with the ATLAS Detector
Druh výsledkuResult type
Článek v časopiseJournal article
AutořiAuthors
G. Aad, G. Aad, B. Abbott, K. Abeling, B. Ali, K. Augsten, B. Bergmann, T. Billoud, H. Day-Hall, Z. Hubáček, P. Jačka, S. Mondal, M. Myška, L. Novotný, V. Petousis, R. Polifka, S. Pospíšil, K. Smolek, A. Sopczak, V. Vacek, P. Vokáč, O. Zaplatílek
Klíčová slovaKeywords
atlas, lhc
ExperimentCollaboration
ATLAS
DOIDOI
10.1103/PhysRevLett.132.021802
Časopis / citaceJournal / citation
Physical Review Letters 132(2), 021802 (2024) · ISSN 0031-9007
RokYear
2024
JazykLanguage
eng
ZáznamyRecords
ProjektProject
CERN-CZ III - Výzkumná infrastruktura pro experimenty v CERN - LM2023040 (2023–2026)CERN-CZ III - Výzkumná infrastruktura pro experimenty v CERN - LM2023040 (2023–2026); Výzkum základních stavebních kamenů hmoty s využitím špičkových technologiíFundamental constituents of matter through frontier technologies
CitovánoCited by
33 (INSPIRE-HEP)
2022: 12023: 32024: 112025: 112026: 7
Plný text (open access)Full text (open access)
http://link.aps.org/pdf/10.1103/PhysRevLett.132.021802
Citace ke staženíDownload citation
TXT · BibTeX

AbstraktAbstract

This Letter reports the observation of production and a measurement of its cross section using of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The production cross section, with both the and bosons decaying leptonically, (, ), is measured in a fiducial phase-space region defined such that the leptons and the photon have high transverse momentum and the photon is isolated. The cross section is found to be . The corresponding standard model predicted cross section calculated at next-to-leading order in perturbative quantum chromodynamics and at leading order in the electroweak coupling constant is 1.50±0.06 fb. The observed significance of the 𝑊⁢𝑍⁢𝛾 signal is 6.3⁢𝜎, compared with an expected significance of 5.0⁢𝜎.

This Letter reports the observation of production and a measurement of its cross section using of proton-proton collision data recorded at a center-of-mass energy of 13 TeV by the ATLAS detector at the Large Hadron Collider. The production cross section, with both the and bosons decaying leptonically, (, ), is measured in a fiducial phase-space region defined such that the leptons and the photon have high transverse momentum and the photon is isolated. The cross section is found to be . The corresponding standard model predicted cross section calculated at next-to-leading order in perturbative quantum chromodynamics and at leading order in the electroweak coupling constant is 1.50±0.06 fb. The observed significance of the 𝑊⁢𝑍⁢𝛾 signal is 6.3⁢𝜎, compared with an expected significance of 5.0⁢𝜎.

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