LHC Higgs Cross Section Working Group 2 - Higgs Properties

Organization:

  • Next meeting: * WG2 session in Dec 2018 general meeting [[https://indico.cern.ch/event/740110/][December 10]

Topics:

  • PO
    • Overview of effective POs and tools for extraction from measurements
    • Reweighting code to apply to existing MC
    • HiggsPO model available in Madgraph with NLO QCD corrections for VH/VBF production

  • EFT
    • Tools: Implementation of Warsaw basis in FeynRules (available) with NLO QCD corrections in Madgraph (in development)
    • Validity (for discussion): defining the region of ci vs Lambda; square term gives an estimate of the uncertainty from higher powers of 1/Lambda
    • Note on STXS->EFT mapping (available)
    • Standard procedure for combined fit to Higgs+EW+Top data (for discussion)

Roadmap:

Topic ShortDescription Deliverables Timescale Notes Status Contact
STXS & differential XS         In progress
PO PO Summary for experiments. Scenarios for h>4l decays. Mapping to other frameworks.   Early 2019   Not started yet David Marzocca
EFT BSM Benchmarks and mapping to EFT. Determine benchmarks sensitive to differential and coupling measurements, define relevant EFT parameters   End 2018 Four contributions in progress; more contributions welcome In progress Francesco Riva David Marzocca
EFT Fit to STXS using a standardized mapping Notes Summer 2018 Internal note available with HEL model, follow-up public note ongoing using SMEFTsim In progress Chris Hays
EFT Global Fit in EFT Framework; inclusion of top and Electroweak measurements       In progress  
EFT Interpretation Workflow Summary: Processes, Operators and BSM Interpretations Note Early 2019   Not started yet  

Tools:

  • STXS & Differential XS
    • The STXS Rivet code
      • Download with a CERN account using svn+ssh://svn.cern.ch/reps/lhchiggsxs/repository/TemplateXS <http://svn.cern.ch/reps/lhchiggsxs/repository/TemplateXS>
      • Download this tar ball if you do not have a CERN account

  • EFT
    • Mapping of the STXS to HEL parameters
    • FeynRules implementation of the Warsaw basis (SMEFTsim)

Past projects:

-- AdamFalkowski - 28 Oct 2014

  • STXS.tgz: Revision 8941 of the STXS classification code
Topic attachments
I Attachment History Action Size Date Who Comment
Compressed Zip archivetgz STXS.tgz r1 manage 78.1 K 2018-05-15 - 08:27 ChristopherHays Revision 8941 of the STXS classification code
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Topic revision: r30 - 2019-01-25 - PredragMilenovic
 
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