What question did this study set out to answer?

To enhance the sensitivity of Higgs boson property measurements through combination of individual analyses.

January 25, 2026Open Access

Combined Higgs boson measurements and their interpretations with the ATLAS experiment

Key Points

To enhance the sensitivity of Higgs boson property measurements through combination of individual analyses.
Combining individual measurements from ATLAS analyses using the full LHC Run 2 dataset
Analyzing Higgs boson decays, specifically focusing on H to WW* and H to ZZ*
Utilizing data from the full run and early Run 3 for precise results
Applying statistical methods to derive cross-sections and coupling strengths.
Most precise results of Higgs boson couplings reported by ATLAS to date
Results yield consistent agreement with Standard Model predictions
Detailed analyses of H to WW* and H to ZZ* highlight significant decay information

Abstract

Combining individual measurements of Higgs boson properties provides enhanced sensitivity and enables precise tests of the Standard Model. These proceedings present a recent combination of ATLAS analyses based on the full LHC Run~2 dataset comprising 140~fb^-1 at 13~TeV, yielding the most precise ATLAS results so far of Higgs boson couplings and production and decay cross-sections. In addition, four dedicated analyses of Higgs boson decays to (vector) bosons are discussed. Two of these focus on H WW^* using the full Run~2 dataset, while the other two present the first Run~3 measurements of H ZZ^* with 56~fb^-1 of early data collected at s = 13. 6~TeV. All results presented agree with predictions, attesting to the remarkable precision with which the Higgs boson continues to conform to the Standard Model expectations.

Combined Higgs boson measurements and their interpretations with the ATLAS experiment

Key Points

Abstract

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