Report

PUBDB-2025-05331

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Combined measurements of Higgs boson production and decay at $\sqrt{s} =$ 13 TeV using up to 140 fb$^{-1}$ of data collected by the ATLAS Experiment

ATLAS Collaboration (Collaboration author)DESY*

2025

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Please use a persistent id in citations: doi:10.3204/PUBDB-2025-05331

Report No.: ATLAS-CONF-2025-006

Abstract: This note presents combined measurements of Higgs boson production and decay using up to 140 fb$^{-1}$ of proton-proton collision data collected by the ATLAS experiment at the LHC at $\sqrt{s} = 13$ TeV. The global signal strength is determined to be $1.023 ^{+0.056} _{-0.053}$. Measurements of inclusive production cross-sections, decay branching ratios, production cross-sections for individual decay channels, and Higgs boson coupling modifiers are also presented and discussed. The cross-sections for Higgs boson production in association with $W$ bosons, $Z$ bosons, or top quarks is measured with a precision that is improved by 20-40% relative to the most recent comparable results from the ATLAS Collaboration. Uncertainties in the measurements of Higgs boson branching ratios to $WW$, $bb$, and $\tau\tau$ are similarly reduced by 10-20%. Higgs boson couplings to $W$, $Z$, $t$, $b$, and $\tau$ are determined with an accuracy that is improved by 10-20%, and about 50% for the coupling to the charm quark.

Note: Preliminary results. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/CONFNOTES/ATLAS-CONF-2025-006. The authors list may be incomplete!

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Contributing Institute(s):

1. LHC/ATLAS Experiment (ATLAS)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF4-611) (POF4-611)

Experiment(s):

1. LHC: ATLAS

Appears in the scientific report 2025

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