Exact Top-Quark Mass Dependence in Hadronic Higgs Production

Czakon, M.; Harlander, Robert V.; Klappert, J.; Niggetiedt, Marco

doi:10.1103/physrevlett.127.162002

Cited by 30 publications

(15 citation statements)

References 49 publications

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“…The upper and lower values correspond to the envelope of 7-point scale variations. mass dependence of the inclusive Higgs production cross section [47][48][49] and its transverse momentum distribution [50][51][52] are known. In this paper, we adopt the multiplicative reweighting strategy at histogram level using LO fiducial total and differential cross sections with finite top mass corrections.…”

Section: Jhep01(2022)053 σ[Fb]mentioning

confidence: 99%

Fiducial cross sections for the lepton-pair-plus-photon decay mode in Higgs production up to NNLO QCD

Chen

Gehrmann

Glover

et al. 2022

J. High Energ. Phys.

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The rare three-body decay of a Higgs boson to a lepton-antilepton pair and a photon is starting to become experimentally accessible at the LHC. We investigate how higher-order QCD corrections to the dominant gluon-fusion production process impact on the fiducial cross sections in this specific Higgs decay mode for electrons and muons. Corrections up to NNLO QCD are found to be sizeable. They are generally uniform in kinematical variables related to the Higgs boson, but display several distinctive features in the kinematics of its individual decay products.

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Section: Jhep01(2022)053 σ[Fb]mentioning

confidence: 99%

Fiducial cross sections for the lepton-pair-plus-photon decay mode in Higgs production up to NNLO QCD

Chen

Gehrmann

Glover

et al. 2022

J. High Energ. Phys.

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“…In particular, they were included at large partonic center of mass energy as well as from 1/m t terms [37][38][39][40] and they amount to 1% correction. Recently, in [41], the exact top quark effects were included at NNLO for all the channels and this results in a decrease in cross section compared to HEFT to −0.26% at 13 TeV and −0.1% at 8 TeV.…”

Section: Introductionmentioning

confidence: 99%

Resummed Higgs boson cross section at next-to SV to $ \rm NNLO + \rm \overline {NNLL}$

Ajjath,

Mukherjee,

Ravindran

et al. 2021

Preprint

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We present the resummed predictions for inclusive cross section for the production of Higgs boson at next-to-next-to leading logarithmic (NNLL) accuracy taking into account both soft-virtual (SV) and next-to SV (NSV) threshold logarithms. We derive the N -dependent coefficients and the N -independent constants in Mellin-N space for our study. Using the minimal prescription we perform the inverse Mellin transformation and match it with the corresponding fixed order results. We report in detail the numerical impact of N -independent part of resummed result and explore the ambiguity involved in exponentiating them. By studying the K factors at different logarithmic accuracy, we find that the perturbative expansion shows better convergence improving the reliability of the prediction at NNLO + NNLL accuracy. For instance, the cross-section at NNLO + NNLL accuracy reduces by 3.15% as compared to the NNLO result for the central scale µ R = µ F = m H /2 at 13 TeV LHC. We also observe that the resummed SV + NSV result improves the renormalisation scale uncertainty at every order in perturbation theory. The uncertainty from the renormalisation scale µ R ranges between (+8.85%, −10.12%) at NNLO whereas it goes down to (+6.54%, −8.32%) at NNLO + NNLL accuracy. However, the factorisation scale uncertainty is worsened by the inclusion of these NSV logarithms hinting the importance of resummation beyond NSV terms. We also present our predictions for SV + NSV resummed result at different collider energies.

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“…H → aa signal sample described above. The prediction was normalized to the next-to-nextto-next-to-leading-order (N 3 LO) cross section in QCD with next-to-leading-order (NLO) electroweak corrections [122][123][124][125][126][127][128][129][130][131][132][133]. The VBF process [106][107][108]134] was simulated using Powheg Box at NLO.…”

Section: Jhep03(2022)041mentioning

confidence: 99%

Search for Higgs bosons decaying into new spin-0 or spin-1 particles in four-lepton final states with the ATLAS detector with 139 fb−1 of pp collision data at $$ \sqrt{s} $$ = 13 TeV

Collaboration

Aad

Abbott

et al. 2022

J. High Energ. Phys.

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Searches are conducted for new spin-0 or spin-1 bosons using events where a Higgs boson with mass 125 GeV decays into four leptons (ℓ = e, μ). This decay is presumed to occur via an intermediate state which contains two on-shell, promptly decaying bosons: H → XX/ZX → 4ℓ, where the new boson X has a mass between 1 and 60 GeV. The search uses pp collision data collected with the ATLAS detector at the LHC with an integrated luminosity of 139 fb−1 at a centre-of-mass energy $$ \sqrt{s} $$ s = 13 TeV. The data are found to be consistent with Standard Model expectations. Limits are set on fiducial cross sections and on the branching ratio of the Higgs boson to decay into XX/ZX, improving those from previous publications by a factor between two and four. Limits are also set on mixing parameters relevant in extensions of the Standard Model containing a dark sector where X is interpreted to be a dark boson.

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Exact Top-Quark Mass Dependence in Hadronic Higgs Production

Cited by 30 publications

References 49 publications

Fiducial cross sections for the lepton-pair-plus-photon decay mode in Higgs production up to NNLO QCD

Fiducial cross sections for the lepton-pair-plus-photon decay mode in Higgs production up to NNLO QCD

Resummed Higgs boson cross section at next-to SV to $ \rm NNLO + \rm \overline {NNLL}$

Search for Higgs bosons decaying into new spin-0 or spin-1 particles in four-lepton final states with the ATLAS detector with 139 fb−1 of pp collision data at $$ \sqrt{s} $$ = 13 TeV

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