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Measurement of the H → γ γ and H → Z Z ∗ → 4 ℓ cross-sections in pp collisions at s = 13.6 TeV with the ATLAS detector

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Measurement of the H → γ γ and H → Z Z ∗ → 4 ℓ cross-sections in pp collisions at s = 13.6 TeV with the ATLAS detector. / ATLAS Collaboration.
In: European Physical Journal C: Particles and Fields, Vol. 84, No. 1, 78, 24.01.2024.

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ATLAS Collaboration. Measurement of the H → γ γ and H → Z Z ∗ → 4 ℓ cross-sections in pp collisions at s = 13.6 TeV with the ATLAS detector. European Physical Journal C: Particles and Fields. 2024 Jan 24;84(1):78. doi: 10.1140/epjc/s10052-023-12130-5

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ATLAS Collaboration. / Measurement of the H → γ γ and H → Z Z ∗ → 4 ℓ cross-sections in pp collisions at s = 13.6 TeV with the ATLAS detector. In: European Physical Journal C: Particles and Fields. 2024 ; Vol. 84, No. 1.

Bibtex

@article{03a7457d2e1b492082434b726cb30a9d,
title = "Measurement of the H → γ γ and H → Z Z ∗ → 4 ℓ cross-sections in pp collisions at s = 13.6 TeV with the ATLAS detector",
abstract = "The inclusive Higgs boson production cross-section is measured in the di-photon and the ZZ∗→4ℓ 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{\textquoteright}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∗→4ℓ 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.",
author = "{ATLAS Collaboration} and A.E. Barton and I.A. Bertram and G. Borissov and E.V. Bouhova-Thacker and R.A.M. Ferguson and H. Fox and R.C.W. Henderson and R.W.L. Jones and V. Kartvelishvili and P.A. Love and E.J. Marshall and L. Meng and D. Muenstermann and N. Ribaric and K. Rybacki and M. Smizanska and S. Spinali and A.M. Wharton",
year = "2024",
month = jan,
day = "24",
doi = "10.1140/epjc/s10052-023-12130-5",
language = "English",
volume = "84",
journal = "European Physical Journal C: Particles and Fields",
issn = "1434-6044",
publisher = "SPRINGER",
number = "1",

}

RIS

TY - JOUR

T1 - Measurement of the H → γ γ and H → Z Z ∗ → 4 ℓ cross-sections in pp collisions at s = 13.6 TeV with the ATLAS detector

AU - ATLAS Collaboration

AU - Barton, A.E.

AU - Bertram, I.A.

AU - Borissov, G.

AU - Bouhova-Thacker, E.V.

AU - Ferguson, R.A.M.

AU - Fox, H.

AU - Henderson, R.C.W.

AU - Jones, R.W.L.

AU - Kartvelishvili, V.

AU - Love, P.A.

AU - Marshall, E.J.

AU - Meng, L.

AU - Muenstermann, D.

AU - Ribaric, N.

AU - Rybacki, K.

AU - Smizanska, M.

AU - Spinali, S.

AU - Wharton, A.M.

PY - 2024/1/24

Y1 - 2024/1/24

N2 - The inclusive Higgs boson production cross-section is measured in the di-photon and the ZZ∗→4ℓ 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∗→4ℓ 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.

AB - The inclusive Higgs boson production cross-section is measured in the di-photon and the ZZ∗→4ℓ 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∗→4ℓ 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.

U2 - 10.1140/epjc/s10052-023-12130-5

DO - 10.1140/epjc/s10052-023-12130-5

M3 - Journal article

VL - 84

JO - European Physical Journal C: Particles and Fields

JF - European Physical Journal C: Particles and Fields

SN - 1434-6044

IS - 1

M1 - 78

ER -