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Measurements of the Higgs boson production, fiducial and differential cross-sections in the four lepton decay channel using 164 fb−1 of data collected at s=13.6 TeV with the ATLAS detector
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Measurements of the Higgs boson production, fiducial and differential cross-sections in the four lepton decay channel using 164 fb−1 of data collected at s=13.6 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, …
The journal of high energy physics, 卷.2026(8), 頁.52
06/08/2026

摘要

Classical and Quantum Gravitation Elementary Particles Physics Physics and Astronomy Quantum Field Theories Quantum Field Theory Quantum Physics Regular Article - Experimental Physics Relativity Theory String Theory
A bstract Inclusive, differential and production-mode cross-section measurements of the Higgs boson are performed in the H → ZZ * → 4 ℓ decay channel. The analysis uses proton–proton collision data produced at the Large Hadron Collider at a centre-of-mass energy of s = 13.6 TeV and recorded with the ATLAS detector, corresponding to an integrated luminosity of 164 fb − 1 . The inclusive fiducial cross-section for the H → ZZ * → 4 ℓ process is measured to be σ fid = 3.65 − 0.33 + 0.35 fb, in agreement with the Standard Model prediction of σ fid SM = 3.68 ± 0.17 fb. Differential cross-sections are measured as a function of key kinematic observables of the Higgs boson and the four-lepton final state. Cross-sections are measured for the main production-modes in several exclusive regions of the Higgs boson production phase space and combined to measure an overall Higgs boson signal strength, defined as the measured cross-section normalised to the SM prediction, of μ = 0.99 ± 0.13. The results are interpreted in terms of modifications of Higgs boson couplings using the κ framework, within the Standard Model Effective Field Theory, and in scenarios probing the Higgs boson self-coupling. All the results are consistent with Standard Model expectations.

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https://doi.org/10.1007/JHEP08(2026)052檢視
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