2013:groups:tools:hepmc
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2013:groups:tools:hepmc [2013/06/06 17:17] jonathan.butterworth |
2013:groups:tools:hepmc [2013/06/19 10:20] (current) andy.buckley |
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| The GenVertex.id() is not currently used/specified. We propose to define six codes: | The GenVertex.id() is not currently used/specified. We propose to define six codes: | ||
| - | |||
| - | |||
| - | |||
| - | parton shower --> | ||
| - | hadronisation --> | ||
| - | pre-hadronisation W decay --> mass optimisation | ||
| - | post-hadronisation particle decay --> vertexing etc | ||
| - | |||
| - | genvertex.ID() | ||
| * **0 -- undefined** (no information) | * **0 -- undefined** (no information) | ||
| Line 32: | Line 23: | ||
| * **2 -- secondary partonic scatters** (useful for studies of MPI jet production, e.g. for suppressing jets from MPI while retaining the low pT tail of the underlying event, as in [[http://inspirehep.net/record/1216670|this paper]]. | * **2 -- secondary partonic scatters** (useful for studies of MPI jet production, e.g. for suppressing jets from MPI while retaining the low pT tail of the underlying event, as in [[http://inspirehep.net/record/1216670|this paper]]. | ||
| * **3 -- Hard decay** (prehadronisation) e.g. of W, H, Z, t. Useful e.g. for optimisation studies of mass resolution | * **3 -- Hard decay** (prehadronisation) e.g. of W, H, Z, t. Useful e.g. for optimisation studies of mass resolution | ||
| - | * **4 -- parton shower** (including QED radiation) Useful for e.g. identifying g->bb splitting probability; ME/PS matching studies; identifying photons for dressing lepton. | + | * **4 -- parton shower** (including QED radiation) Useful for e.g. identifying g->bb splitting probability; ME/PS matching studies; identifying photons for dressing leptons. NB any parton shower after a hadronisation is ignored, and the hadrons from it |
| + | are flagged as being produced in a hadron decay. | ||
| * **5 -- primary hadron formation** Useful for e.g redoing hadroisation, applying BEC corrections, studying/tracking decay chains. | * **5 -- primary hadron formation** Useful for e.g redoing hadroisation, applying BEC corrections, studying/tracking decay chains. | ||
| * **6 -- hadron, tau and muon decays** | * **6 -- hadron, tau and muon decays** | ||
| Line 38: | Line 30: | ||
| We propose that 10-99 be reserved for generator-specific types. | We propose that 10-99 be reserved for generator-specific types. | ||
| - | NB any shower after a hadronisation is ignored, and the hadrons from it | + | __Weight names__ |
| - | are flagged as being produced in a hadron decay. | + | |
| - | --- | + | Some standardisation of weight names is desirable: |
| - | "MUF*** MUR*** 10801 20123" (last number is the PDF ID) | + | "MUF*** MUR*** PDF10801 PDF20123" (last numbers are the LHAPDF/PDFLIB unique PDF member IDs) |
| - | names for each weight. | + | names for each weight, to go in the GenRun, linked to GenWeightContainer? |
2013/groups/tools/hepmc.1370531873.txt.gz · Last modified: 2013/06/06 17:17 by jonathan.butterworth
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