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Combination of Measurements of CP Properties of Higgs Boson Interactions with Vector Bosons Using Proton-Proton Collisions at sqrt[s]=13  TeV with the ATLAS Detector
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Combination of Measurements of CP Properties of Higgs Boson Interactions with Vector Bosons Using Proton-Proton Collisions at sqrt[s]=13  TeV with the ATLAS Detector

G. Aad, E. Aakvaag, B. Abbott, S. Abdelhameed, K. Abeling, N. J. Abicht, S. H. Abidi, M. Aboelela, A. Aboulhorma, H. Abramowicz, …
Physical review letters, 卷.137(2), 頁.021801
10/07/2026
PMID: 42503122
Web of Science ID: WOS:001838038200001

摘要

<p>A combination of measurements of the CP properties of Higgs boson interactions with electroweak gauge bosons is presented, using 140 fb(-1) of proton-proton collisions at root s = 13 TeV recorded by the ATLAS detector. Results from vector boson fusion H -> tau tau/WW*/gamma gamma, inclusive H -> ZZ*, and WH, H -> b (b) over bar channels are combined. No evidence of CP violation is observed, and constrains on the CP-violating operators in the Standard Model effective field theory framework (SMEFT) are set in theWarsaw basis. The results from the combination improve by over 40% on previous individual limits on c(H<(W)over tilde) and, for the first time, simultaneous constraints on three coefficients c(H<(W)over tilde>), c(H<(B)over tilde), and c(H<(W)over tildeB) are set. These limits are the most stringent constraints to date on the relevant Wilson coefficients in the SMEFT framework with minimum model dependence.</p>

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