Test of CP invariance in higgs boson vector-boson-fusion production using the H→γγ channel with the ATLAS detector : = Test of CP invariance in higgs boson vector-boson-fusion production using the H→[gamma][gamma] channel with the ATLAS detector

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Abstract: A test of ⁢ invariance in Higgs boson production via vector-boson fusion has been performed in the → ⁢ channel using 139  fb−1 of proton-proton collision data at √ =13  TeV collected by the ATLAS detector at the LHC. The optimal observable method is used to probe the ⁢ structure of interactions between the Higgs boson and electroweak gauge bosons, as described by an effective field theory. No sign of ⁢ violation is observed in the data. Constraints are set on the parameters describing the strength of the ⁢ -odd component in the coupling between the Higgs boson and the electroweak gauge bosons in two effective field theory bases: ˜ in the HISZ basis and ⁢˜ in the Warsaw basis. The results presented are the most stringent constraints on ⁢ violation in the coupling between Higgs and weak bosons. The 95% C.L. constraint on ˜ is derived for the first time and the 95% C.L. constraint on ⁢˜ has been improved by a factor of 5 compared to the previous measurement

Weitere Titel
Test of CP invariance in higgs boson vector-boson-fusion production using the H→[gamma][gamma] channel with the ATLAS detector
Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch
Anmerkungen
Physical review letters. - 131, 6 (2023) , 061802, ISSN: 1079-7114

Ereignis
Veröffentlichung
(wo)
Freiburg
(wer)
Universität
(wann)
2024
Urheber
Beteiligte Personen und Organisationen
Experimentelle Teilchenphysik

DOI
10.1103/physrevlett.131.061802
URN
urn:nbn:de:bsz:25-freidok-2541535
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:34 MESZ

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