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Combined effective field theory interpretation of measurements sensitive to quartic gauge boson couplings in pp collisions at s=13 TeV with the ATLAS detector
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Combined effective field theory interpretation of measurements sensitive to quartic gauge boson couplings in pp collisions at 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, …
Physics letters. B, 卷.879, 140683
08/2026
Web of Science ID: WOS:001837937200001

摘要

EFT Quartic-gauge coupling Statistical combination Tri-Boson Vector-boson scattering
A combination of measurements sensitive to anomalous quartic electroweak gauge boson couplings is presented using proton–proton collision data collected by the ATLAS detector at s=13 TeV at the LHC. Contributing analyses include measurements of vector-boson scattering in numerous final states as well as a tri-boson measurement. The combined measurement is used to constrain anomalous electroweak boson quartic self-couplings that result from dimension-8 operators in the Éboli model using an effective field theory. Results are presented as 68% and 95% confidence level intervals parameterised by one or two Wilson coefficients, both with and without unitarity constraints applied. Theoretical bounds from unitarity and positivity are overlaid where relevant. Confidence intervals obtained from simultaneous profiled fits to all Wilson coefficients are also presented.

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https://doi.org/10.1016/j.physletb.2026.140683檢視
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