HAWK 2.0: A Monte Carlo program for Higgs production in vector-boson fusion and Higgs strahlung at hadron colliders

Abstract

The Monte Carlo integrator HAWK provides precision predictions for Higgs production at hadron colliders in vector-boson fusion and Higgs strahlung, i.e. in production processes where the Higgs boson is Attached to WeaK bosons. The fully differential predictions include the full QCD and electroweak next-to-leading-order corrections. Results are computed as integrated cross sections and as binned distributions for important hadron-collider observables. Program summaryProgram title: HAWK, version 2.0Catalogue identifier: AEWT_v1_0Program summary URL:http://cpc.cs.qub.ac.uk/summaries/AEWT_v1_0.htmlProgram obtainable from: CPC Program Library, Queen’s University, Belfast, N. IrelandLicensing provisions: Standard CPC licence, http://cpc.cs.qub.ac.uk/licence/licence.htmlNo. of lines in distributed program, including test data, etc.: 132878No. of bytes in distributed program, including test data, etc.: 1400686Distribution format: tar.gzProgramming language: Fortran 77, Fortran 90.Computer: Any computer with a Fortran 90 compiler.Operating system: Linux, Mac OS.RAM: Less than 1 GBClassification: 4.4, 11.1, 11.2.External routines: LHAPDF (https://www.hepforge.org/downloads/lhapdf).Nature of problem:Precision calculation of cross sections and differential distributions for Higgs-boson production in vector-boson fusion and Higgs strahlung at the LHC as described in Refs. [1–3].Solution method:Multi-channel Monte Carlo integration of perturbative matrix elements including higher-order QCD and electroweak corrections which are based on a Feynman-diagrammatic calculation.Restrictions:For vector-boson fusion, only the Higgs-boson decay into a pair of massless singlets is supported. For Higgs strahlung, decay products are not supported, while the Higgs boson can be off shell.Running time:Meaningful results can be obtained within a few hours on a single core. The statistical uncertainty of the results typically improves with the square root of the run time.