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2019:groups:higgs:ggzh [2019/06/17 10:55] carlo_enrico.pandini |
2019:groups:higgs:ggzh [2019/06/18 16:49] (current) carlo_enrico.pandini |
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**Points to consider** | **Points to consider** | ||
* check that e.g. powheg+py8 and mg5+py8 give the same, if the shower starting scale is the same | * check that e.g. powheg+py8 and mg5+py8 give the same, if the shower starting scale is the same | ||
- | * 2 "substudies": 1 targeted to just the STXS bins, one with some more differential distributions | + | * 2 "substudies": 1 targeted to just the [[https://twiki.cern.ch/twiki/pub/LHCPhysics/LHCHXSWGFiducialAndSTXS/simplifiedXS_VH_1.1.pdf|STXS bins]], one with some more differential distributions |
* tools: powheg+py8 (current baseline for ATLAS/CMS), mg5+py8 (0 jet / 0+1 jet LO merging), sherpa (0 jet / 0+1 jet LO merging) | * tools: powheg+py8 (current baseline for ATLAS/CMS), mg5+py8 (0 jet / 0+1 jet LO merging), sherpa (0 jet / 0+1 jet LO merging) | ||
- | * for this study: H undecayed, Z decaying to 1 lepton family. Check that stxs rivet routine can do this (for py8 as well as sherpa). | + | * for this study: H undecayed, Z decaying to 1 lepton family. Check that stxs rivet routine can do this (for py8 as well as sherpa). Otherwise, can also do H->bb, but in this case we need to have the complete information in the HepMC also for sherpa, as Rivet looks for Higgs and Z as the last entry with correct id before the decay.. |
* for STXS unc.: consider jet pT spectrum (for definition of nJet bins) and impact on uncertainties | * for STXS unc.: consider jet pT spectrum (for definition of nJet bins) and impact on uncertainties | ||
* for mg5+py8 validation: m(VH) is a good variable to check inclusive / 0+1jet multileg agreement | * for mg5+py8 validation: m(VH) is a good variable to check inclusive / 0+1jet multileg agreement | ||
**Rivet code** | **Rivet code** | ||
- | * STXS-rivet routine (will add link here): keep unchanged to run over STXS bin selection | + | * [[https://gitlab.cern.ch/LHCHIGGSXS/LHCHXSWG2/STXS/Classification|STXS-rivet routine]]: keep unchanged to run over STXS bin selection |
* VH-HXSWG-rivet routine (will add link here): use this to include additional variables, and any modification we might want to consider | * VH-HXSWG-rivet routine (will add link here): use this to include additional variables, and any modification we might want to consider | ||
* we can for each MC setup run both routines, to get results for both "substudies" | * we can for each MC setup run both routines, to get results for both "substudies" | ||