• Discussion focused on H→gammagamma and H→4leptons (and maybe H→WW)

• Currently available measurements:
  • ATLAS H→gammagamma: http://arxiv.org/abs/1407.4222 (https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2013-10/)
  • ATLAS H→4leptons: http://arxiv.org/abs/1408.3226 (https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2013-22)
  • ATLAS combination of H→gammagamma and H→4leptons: http://arxiv.org/abs/1504.05833 (https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/HIGG-2014-11/)
  • Results from CMS will hopefully be available soon.

• What would be other useful observables and/or corners of phase space that are not currently measured by the experiments?
  • Inclusive variables
    • pT with a finer binning especially in the low pT range once possible
    • phi* probes the low pT phase space region in a different way (experimental resolution should be better for H→4leptons; H→gammagamma to be checked)
    • pTt (redundant with phi*, check which one can be measured better)
  • 0-jet resolution variables (currently measured: pTj, TauCj)
    • Tau(C)j (lower pTj cut important)
    • Tau0
  • 1-jet resolution variables for pTj1/pT(H)/Tauj1 > cut for different cuts (30, 50, 100)
    • pTj1/pTj2 more differentially
    • pT(Hj-system)
    • phi(H-j)
    • Tau1, jetmass
  • 2-jet: CP studies with ggH
    • Delta phijj mapped to full [0, 2pi] (see arXiv:1006.0986)
    • for CP studies in ggH: use loose delta eta_jj cut (some separation between jets, but looser than one would use for VBF studies)
  • While statistics is limited, measurement of the 1st, 2nd moments of distributions is useful
    (binning effects should be investigated).

• Information that is useful to include in publications to allow making maximal use of the results
  • cross correlations between different spectra
  • estimated nonperturbative effects
  • estimated contributions of non-ggH modes
  • acceptance corrections to allow extrapolation from fiducial region to full phase space (for convenience)

Points for further discussion:

• Background subtraction for H→ZZ should be done or not?
• More details to be discussed for gamma gamma?
• How to deal with interference?
• Should spectra be measured normalized or not normalized?
  • not normalized (normalization can always be done later)?
• What is possible for H→WW?