Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.11851/11028
Title: Measurement of the H→ γγ and H→ ZZ∗→ 4 ℓ cross-sections in pp collisions at √s=13.6 TeV with the ATLAS detector
Authors: Aad, G.
Abbott, B.
Abeling, K.
Abicht, N.J.
Abidi, S.H.
Aboulhorma, A.
Abramowicz, H.
Keywords: Bosons
Phase space methods
Tellurium compounds
A-center
ATLAS detectors
Center-of-mass energies
Decay channels
Higgs boson
Measurements of
Model prediction
Phase spaces
Production cross section
Standard model
Photons
Issue Date: 2024
Publisher: Institute for Ionics
Abstract: The inclusive Higgs boson production cross-section is measured in the di-photon and the ZZ∗→ 4 ℓ decay channels using 31.4 and 29.0 fb - 1 of pp collision data respectively, collected with the ATLAS detector at a centre-of-mass energy of s=13.6 TeV . To reduce the model dependence, the measurement in each channel is restricted to a particle-level phase space that closely matches the channel’s detector-level kinematic selection, and it is corrected for detector effects. These measured fiducial cross-sections are σfid,γγ= 76-13+14 fb, and σfid,4ℓ= 2.80±0.74 fb, in agreement with the corresponding Standard Model predictions of 67.6 ± 3.7 fb and 3.67 ± 0.19 fb. Assuming Standard Model acceptances and branching fractions for the two channels, the fiducial measurements are extrapolated to the full phase space yielding total cross-sections of σ(pp→H)=67-11+12 pb and 46 ± 12 pb at 13.6 TeV from the di-photon and ZZ∗→ 4 ℓ measurements respectively. The two measurements are combined into a total cross-section measurement of σ(pp→ H) = 58.2 ± 8.7 pb, to be compared with the Standard Model prediction of σ(pp→ H) SM= 59.9 ± 2.6 pb. © 2024, The Author(s).
URI: https://doi.org/10.1140/epjc/s10052-023-12130-5
https://hdl.handle.net/20.500.11851/11028
ISSN: 1434-6044
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection

Show full item record



CORE Recommender

Google ScholarTM

Check




Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.