2023:groups:smjets:jets-and-ml:start
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2023:groups:smjets:jets-and-ml:start [2023/06/16 09:13] loukas.gouskos [MC samples] |
2023:groups:smjets:jets-and-ml:start [2024/03/26 13:43] (current) roman.kogler |
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| - | Interested people: Loukas, ... | + | Interested people: Loukas, Huilin, Anna, Roman |
| ==== Ideas ==== | ==== Ideas ==== | ||
| - train W-vs-q/g and q-vs-g with state-of-the-art generators | - train W-vs-q/g and q-vs-g with state-of-the-art generators | ||
| + | |||
| + | - consider training dijet vs Z+jet vs W(qq) without any use of "flavor-truth" to remain generator independent. cross check with CMS-style-parton-flavor-definition | ||
| - reweight to different observables in measurements, check performance | - reweight to different observables in measurements, check performance | ||
| Line 9: | Line 11: | ||
| - make a rivet plugin of a ML-tagger as testbed to MC generators | - make a rivet plugin of a ML-tagger as testbed to MC generators | ||
| - | ==== MC samples ==== | + | - Identify which part of the hadronization process shows the largest discrepancy between the generators |
| - | At hadron level with all particles HEPMC or H5? | + | - Cross-correlation between the discriminate of the same algorithm training using different MC generators. e.g. jet tagged with one MC generator, not tagged by the other |
| - | Do not need the whole event, but only the particles within the leading jet | + | - Change some parameters of pythia's hadronization model. Can a classifier discriminate between those and help tuning |
| - | W->qq with 300<pT<500 | + | More in: More in |
| + | https://www.overleaf.com/project/648ab3e1c164ede47c68c368 | ||
| - | dijets with 300<pT<500 | ||
| + | ==== Rivet plugin to dump a root tree ==== | ||
| + | |||
| + | <code> | ||
| + | |||
| + | # setup LCG environment | ||
| + | source /cvmfs/sft.cern.ch/lcg/views/LCG_103/x86_64-centos7-gcc11-opt/setup.sh | ||
| + | |||
| + | # build example analysis | ||
| + | wget https://gitlab.com/hepcedar/rivet/-/raw/rivet-3.1.7/analyses/examples/EXAMPLE_NTUPLE_ROOT.cc | ||
| + | rivet-build RivetExampleAnalyses.so EXAMPLE_NTUPLE_ROOT.cc `root-config --cflags --libs` | ||
| + | export RIVET_ANALYSIS_PATH=$PWD | ||
| + | |||
| + | # check the build is successful | ||
| + | rivet --show-analysis EXAMPLE_NTUPLE_ROOT | ||
| + | # run it | ||
| + | rivet --analysis EXAMPLE_NTUPLE_ROOT 0000.hepmc | ||
| + | |||
| + | </code> | ||
| + | |||
| + | Start from example | ||
| + | https://gitlab.com/hepcedar/rivet/-/blob/release-3-1-x/analyses/examples/EXAMPLE_NTUPLE_ROOT.cc | ||
| + | |||
| + | First version from Huilin: | ||
| + | https://github.com/lh23-jss/lh23-jss-rivet | ||
| + | |||
| + | JET_NTUPLE_QG:MODE=DIJET:JET_R=0.4 for q-vs-g | ||
| + | |||
| + | JET_NTUPLE_QG:MODE=ZJET:JET_R=0.4 for q-vs-g | ||
| + | |||
| + | JET_NTUPLE_QG:MODE=DIJET:JET_R=0.8 for W-vs-q/g | ||
| + | |||
| + | JET_NTUPLE_QG:MODE=WZ:JET_R=0.8 for W-vs-q/g | ||
| + | |||
| + | ==== MC samples ==== | ||
| + | |||
| + | At hadron level with all particles HEPMC | ||
| + | |||
| + | Do not need the whole event, but only the particles within the leading jet | ||
| + | |||
| + | List of samples and generators, see https://phystev.cnrs.fr/wiki/2023:groups:smjets:jss-measurements:start | ||
2023/groups/smjets/jets-and-ml/start.1686899612.txt.gz · Last modified: 2023/06/16 09:13 by loukas.gouskos
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