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WG1: Higgs gluon-fusion production

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WG1: Higgs gluon-fusion production: Inclusive Cross Sections at 27 TeV

 
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Previous page: LHCHXSWGGGF

Group Contacts

Dag Gillberg (CERN), Andrea Massironi (Northeastern U), Bernhard Mistlberger (CERN), Pier Francesco Monni (CERN)

Projects

Uncertainties - Note in preparation

Boosted Higgs

Ongoing benchmarking. A note will be written in the future.

A temporary ad interim recommendation is to use the NNLOPS code with the default set-up for top mass effects.
This has been benchmarked against more accurate perturbative codes. See this talk for further detail.

Study of bottom quark mass effects in the Higgs transverse momentum distribution

Ongoing - early 2018.

Meetings

16.3.2017 - WG1 ggF subgroup meeting: uncertainties in kinematic regions

1.11.2017 - WG1 ggF subgroup meeting: Boosted Higgs

10.1.2018 - 12.1.2018 - Joint meeting with WG1 - VBF sub - group

Benchmarks

Production cross section

Explicit predictions for the Higgs boson production cross section via the gluon fusion production mode according to ihixs.

Uncertainties were estimated using the prescription of YR4

Differential distributions

Available Tools

  • ihixs ( F. Dulat, A. Lazopoulos, B. Mistlberger): Program for inclusive Higgs boson cross-section at hadron colliders;
  • ggHiggs ( M.Bonvini et al): Program for inclusive Higgs boson cross-section at hadron colliders;
  • HRes ( D. de Florian, G. Ferrera, M. Grazzini, D. Tommasini): Exclusive cross section at QCD NNLL (transverse momentum resummation);
  • HIGLU ( M. Spira): Inclusive cross section at QCD NLO, full top and bottom mass effects;
  • gg2VV ( N. Kauer): Parton-level integrator and event generator for gg(→H)→WW and gg(→H)→ZZ processes;
  • SusHi (R. Harlander, S. Liebler, H. Mantler): A program for the calculation of Higgs production in gluon fusion and bottom-quark annihilation in the Standard Model and the MSSM
  • MCFM: (J. Campbell, K.Ellis, W. Giele, C. Williams): Multi-purpose generator.
  • MG5_aMC@NLO: (J. Alwall, R. Frederix, S. Frixione, V. Hirschi, F. Maltoni, O. Mattelaer, H.-S. Shao, T. Stelzer, P. Torrielli, M. Zaro): Multi-purpose generator.
  • Matrix: (M.Grazzini, S. Kallweit, M. Wiesemann): Multi-purpose generator.
  • Powheg: (S. Alioli, K. Hamilton, P. Nason, C. Oleari, E. Re, G. Zanderighi): Multi-purpose generator.
  • aMC@NLO: (S. Frixione, F. Stoeckli, P. Torrielli, B. Webber, C. White): Multi-purpose generator.
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On this page we document cross section predictions for a standard model Higgs boson in the gluon fusion production mode at the LHC. To derive predictions we include contributions based on perturbative computations of scattering cross sections as studied in ref. Included are perturbative QCD cross section through N3LO, electro-weak and approximated mixed QCD-electro-weak corrections as well as effects of finite quark masses. To derive theoretical uncertainties we follow the prescriptions outlined in ref. As an input we use the following:

Center of Mass Energy: 27 TeV
m_top(m_top) 162.7 GeV
m_bottom(m_bottom) 4.18 GeV
m_charm(3 GeV) 0.986 GeV
alpha_S(mZ) 0.118
PDF PDF4LHC15_nnlo_100

All quark masses are treated in the MSbar scheme. To derive numerical predictions we use the program ihixs. We vary the exact value of the Higgs boson mass according to the table below. The table contains a prediction for the gluon fusion cross section, associated theory uncertainties and PDF and strong coupling uncertainties for every Higgs boson mass. The PDF and strong coupling uncertainty are listed each individually and combined in quadrature but should only be taken into account once.

mH [GeV] Cross Section [pb] + Theory [%] - Theory [%] PDF+Alpha_S [%] PDF [%] Alpha_S [%]
120.0 156.4 4.64 -6.60 3.36 2.72 1.97
120.5 155.4 4.63 -6.58 3.35 2.72 1.97
121.0 154.4 4.62 -6.56 3.35 2.71 1.97
121.5 153.4 4.61 -6.55 3.35 2.71 1.96
122.0 152.4 4.60 -6.54 3.34 2.70 1.96
122.5 151.5 4.59 -6.52 3.34 2.70 1.96
123.0 150.5 4.58 -6.50 3.33 2.70 1.96
123.5 149.6 4.57 -6.49 3.33 2.70 1.96
124.0 148.6 4.56 -6.47 3.33 2.69 1.95
124.1 148.5 4.56 -6.47 3.33 2.69 1.95
124.2 148.3 4.56 -6.46 3.33 2.69 1.95
124.3 148.1 4.55 -6.46 3.32 2.69 1.95
124.4 147.9 4.55 -6.46 3.32 2.69 1.95
124.5 147.7 4.55 -6.46 3.32 2.69 1.95
124.6 147.5 4.55 -6.45 3.32 2.69 1.95
124.7 147.4 4.54 -6.45 3.32 2.69 1.95
124.8 147.2 4.54 -6.44 3.32 2.69 1.95
124.9 147.0 4.54 -6.44 3.32 2.69 1.95
125.0 146.8 4.54 -6.44 3.32 2.69 1.95
125.1 146.6 4.53 -6.43 3.32 2.69 1.95
125.2 146.4 4.53 -6.43 3.32 2.69 1.95
125.3 146.3 4.53 -6.43 3.32 2.69 1.95
125.4 146.1 4.53 -6.42 3.32 2.68 1.95
125.5 145.9 4.52 -6.42 3.32 2.68 1.95
125.6 145.7 4.52 -6.42 3.32 2.68 1.95
125.7 145.6 4.52 -6.41 3.32 2.68 1.95
125.8 145.4 4.52 -6.41 3.31 2.68 1.95
125.9 145.2 4.52 -6.41 3.31 2.68 1.95
126.0 145.0 4.51 -6.40 3.31 2.68 1.95
126.0 145.0 4.51 -6.40 3.31 2.68 1.95
126.5 144.1 4.50 -6.39 3.31 2.68 1.94
127.0 143.3 4.49 -6.37 3.31 2.68 1.94
127.5 142.4 4.48 -6.36 3.30 2.67 1.94
128.0 141.5 4.48 -6.34 3.30 2.67 1.94
128.5 140.7 4.47 -6.33 3.30 2.67 1.94
129.0 139.8 4.46 -6.31 3.29 2.66 1.93
129.5 139.0 4.46 -6.30 3.29 2.66 1.93
130.0 138.2 4.45 -6.29 3.28 2.66 1.93
 
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