First N³LO QCD prediction for boosted WH production yields +2% corrections with sub-percent residual scale dependence.
NLO QCD+EW predictions for HV and HV+jet production including parton-shower effects
8 Pith papers cite this work, alongside 54 external citations. Polarity classification is still indexing.
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abstract
We present the first NLO QCD+EW predictions for Higgs boson production in association with a l nu or l+ l- pair plus zero or one jets at the LHC. Fixed-order NLO QCD+EW calculations are combined with a QCD+QED parton shower using the recently developed resonance-aware method in the POWHEG framework. Moreover, applying the improved MINLO technique to H l nu and H l+ l- production at NLO QCD+EW, we obtain predictions that are NLO accurate for observables with both zero or one resolved jet. This approach permits also to capture higher-order effects associated with the interplay of EW corrections and QCD radiation. The behavior of EW corrections is studied for various kinematic distributions, relevant for experimental analyses of Higgsstrahlung processes at the 13 TeV LHC. Exact NLO EW corrections are complemented with approximate analytic formulae that account for the leading and next-to-leading Sudakov logarithms in the high-energy regime. In the tails of transverse-momentum distributions, relevant for analyses in the boosted Higgs regime, the Sudakov approximation works well, and NLO EW effects can largely exceed the ten percent level. Our predictions are based on the POWHEX BOX RES + OpenLoops framework in combination with the Pythia 8.1 parton shower.
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representative citing papers
First NNLO QCD predictions for WH plus jet production at 13 TeV, including top-quark loop effects, yield inclusive cross sections stable at the 1% level.
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Analytic expressions for the planar master integrals in two-loop NLO EW light-fermion contributions to gg → ZH are derived via canonical differential equations and expressed using Goncharov polylogarithms or one-fold integrals over them.
NLO+NLL QCD corrections to gluon-fusion ZH production increase the cross-section by ~20% and reduce scale uncertainties from 20% to 12% at LHC energies, combined with Drell-Yan N3LL results.
GENEVA now generates Higgsstrahlung events at NNLO accuracy matched with NNLL' beam-thrust resummation and parton showers, validated against Matrix for the 13 TeV LHC.
Combined CMS result gives α^{Hττ} = 7 ± 16° for the CP mixing angle in H→ττ, consistent with SM expectation of 0 ± 14°.
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Boosted Higgs-strahlung off a $W$ boson at next-to-next-to-next-to-leading order in QCD
First N³LO QCD prediction for boosted WH production yields +2% corrections with sub-percent residual scale dependence.
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Precise predictions for $\mathrm{WH}$+jet production at the LHC
First NNLO QCD predictions for WH plus jet production at 13 TeV, including top-quark loop effects, yield inclusive cross sections stable at the 1% level.
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Planar master integrals for two-loop NLO electroweak light-fermion contributions to $g g \rightarrow Z H$
Analytic expressions for the planar master integrals in two-loop NLO EW light-fermion contributions to gg → ZH are derived via canonical differential equations and expressed using Goncharov polylogarithms or one-fold integrals over them.
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Associated $ZH$ production in gluon fusion process at NLO+NLL
NLO+NLL QCD corrections to gluon-fusion ZH production increase the cross-section by ~20% and reduce scale uncertainties from 20% to 12% at LHC energies, combined with Drell-Yan N3LL results.
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Higgsstrahlung at NNLL$'+$NNLO Matched to Parton Showers in GENEVA
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Combined CMS result gives α^{Hττ} = 7 ± 16° for the CP mixing angle in H→ττ, consistent with SM expectation of 0 ± 14°.
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