6533b831fe1ef96bd12986f7

RESEARCH PRODUCT

Electroweak Higgs production with HiggsPO at NLO QCD

Jonas M. LindertDavid MarzoccaDavid MarzoccaAdmir GreljoAdmir GreljoAdmir GreljoHantian ZhangGino Isidori

subject

Particle physicsPhysics and Astronomy (miscellaneous)530 PhysicsPhysics beyond the Standard ModelAstrophysics::High Energy Astrophysical PhenomenaHigh Energy Physics::LatticeMonte Carlo methodFOS: Physical scienceslcsh:Astrophysics10192 Physics InstituteParameter space01 natural sciencesHigh Energy Physics - ExperimentHigh Energy Physics - Experiment (hep-ex)High Energy Physics - Phenomenology (hep-ph)Factorization0103 physical scienceslcsh:QB460-466lcsh:Nuclear and particle physics. Atomic energy. Radioactivity3101 Physics and Astronomy (miscellaneous)010306 general physicsParton showerEngineering (miscellaneous)PhysicsQuantum chromodynamics010308 nuclear & particles physicsElectroweak interactionHigh Energy Physics::PhenomenologyHigh Energy Physics - PhenomenologyHiggs bosonlcsh:QC770-798High Energy Physics::Experiment2201 Engineering (miscellaneous)

description

We present the HiggsPO UFO model for Monte Carlo event generation of electroweak $VH$ and VBF Higgs production processes at NLO in QCD in the formalism of Higgs pseudo-observables (PO). We illustrate the use of this tool by studying the QCD corrections, matched to a parton shower, for several benchmark points in the Higgs PO parameter space. We find that, while being sizable and thus important to be considered in realistic experimental analyses, the QCD higher-order corrections largely factorize. As an additional finding, based on the NLO results, we advocate to consider 2D distributions of the two-jet azimuthal-angle difference and the leading jet $p_T$ for new physics searches in VBF Higgs production. The HiggsPO UFO model is publicly available.

https://dx.doi.org/10.48550/arxiv.1710.04143