Measurement of the H→γγ and H→ZZ*→4ℓ cross-sections in pp collisions at √s=13.6 TeV with the ATLAS detector : = Measurement of the H→[gamma][gamma] and H→ZZ*→4ℓ cross-sections in pp collisions at [square root]s=13.6 TeV with the ATLAS detector

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Abstract: The inclusive Higgs boson production crosssection is measured in the di-photon and the ZZ∗ → 4_ decay channels using 31.4 and 29.0 fb−1 of pp collision data respectively, collected with the ATLAS detector at a centreof- 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,γ γ = 76+14 −13 fb, and σfid,4_ = 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+12 −11 pb and 46±12 pb at 13.6 TeV from the di-photon and ZZ∗ → 4_ measurements respectively. The two measurements are combined into a total cross-sectionmeasurement 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

Weitere Titel
Measurement of the H→[gamma][gamma] and H→ZZ*→4ℓ cross-sections in pp collisions at [square root]s=13.6 TeV with the ATLAS detector
Standort
Deutsche Nationalbibliothek Frankfurt am Main
Umfang
Online-Ressource
Sprache
Englisch
Anmerkungen
The European physical journal. - 84, 1 (2024) , 78, ISSN: 1434-6052

Ereignis
Veröffentlichung
(wo)
Freiburg
(wer)
Universität
(wann)
2024
Urheber
Beteiligte Personen und Organisationen
Experimentelle Teilchenphysik

DOI
10.1140/epjc/s10052-023-12130-5
URN
urn:nbn:de:bsz:25-freidok-2532546
Rechteinformation
Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
Letzte Aktualisierung
15.08.2025, 07:32 MESZ

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