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romainschotter
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[PWG-LF] tutorial update (#7666)
* Add LF Strangeness exercises for O2AT Oct 2024 * Add CMakeLists for old tutorial * Remove JSON files * Final adjustments for O2AT * Add link to O2AT page in README file --------- Co-authored-by: romainschotter <romain.schotter@gmail.com> Co-authored-by: SCHOTTER Romain <47983209+romainschotter@users.noreply.github.com>
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‎Tutorials/PWGLF/Strangeness/CMakeLists.txt‎

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# granted to it by virtue of its status as an Intergovernmental Organization
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# or submit itself to any jurisdiction.
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# Strangeness analysis tutorial
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o2physics_add_dpl_workflow(strangeness-step0
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SOURCES strangeness_step0.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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add_subdirectory(pp)
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add_subdirectory(PbPb)
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o2physics_add_dpl_workflow(strangeness-step1
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SOURCES strangeness_step1.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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o2physics_add_dpl_workflow(strangeness-step2
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SOURCES strangeness_step2.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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o2physics_add_dpl_workflow(strangeness-step3
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SOURCES strangeness_step3.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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o2physics_add_dpl_workflow(strangeness-step4
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SOURCES strangeness_step4.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)

‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/CMakeLists.txt‎

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# Copyright 2019-2020 CERN and copyright holders of ALICE O2.
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# See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
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# All rights not expressly granted are reserved.
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#
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# This software is distributed under the terms of the GNU General Public
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# License v3 (GPL Version 3), copied verbatim in the file "COPYING".
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#
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# In applying this license CERN does not waive the privileges and immunities
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# granted to it by virtue of its status as an Intergovernmental Organization
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# or submit itself to any jurisdiction.
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o2physics_add_dpl_workflow(strangeness-pbpb-skeleton
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SOURCES strangeness_pbpb_skeleton.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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o2physics_add_dpl_workflow(strangeness-pbpb-step0
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SOURCES strangeness_pbpb_step0.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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o2physics_add_dpl_workflow(strangeness-pbpb-step1
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SOURCES strangeness_pbpb_step1.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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o2physics_add_dpl_workflow(strangeness-pbpb-step2
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SOURCES strangeness_pbpb_step2.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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o2physics_add_dpl_workflow(strangeness-pbpb-step3
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SOURCES strangeness_pbpb_step3.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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o2physics_add_dpl_workflow(strangeness-pbpb-step4
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SOURCES strangeness_pbpb_step4.cxx
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PUBLIC_LINK_LIBRARIES O2Physics::AnalysisCore
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COMPONENT_NAME AnalysisTutorial)
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‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/run_skeleton.sh‎

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#!/bin/bash
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# log file where the terminal output will be saved
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STEP="skeleton"
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LOGFILE="log-${STEP}.txt"
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#directory of this script
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DIR_THIS=$PWD
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OPTION="-b --configuration json://configuration_skeleton.json"
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o2-analysistutorial-lf-strangeness-pbpb-skeleton "${OPTION}" --aod-file @input_data.txt > "$LOGFILE" 2>&1
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# report status
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rc=$?
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if [ $rc -eq 0 ]; then
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echo "No problems!"
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mkdir -p "${DIR_THIS}/results/${STEP}"
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mv AnalysisResults.root "${DIR_THIS}/results/${STEP}/AnalysisResults.root"
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mv dpl-config.json "${DIR_THIS}/results/${STEP}/${STEP}.json"
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else
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echo "Error: Exit code ${rc}"
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echo "Check the log file ${LOGFILE}"
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exit ${rc}
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fi

‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/run_step0.sh‎

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#!/bin/bash
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# log file where the terminal output will be saved
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STEP="0"
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LOGFILE="log-${STEP}.txt"
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#directory of this script
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DIR_THIS=$PWD
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OPTION="-b --configuration json://configuration_step0.json"
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o2-analysis-lf-cascadespawner "${OPTION}" | o2-analysistutorial-lf-strangeness-pbpb-step0 "${OPTION}" --aod-file @input_data.txt > "$LOGFILE" 2>&1
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# report status
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rc=$?
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if [ $rc -eq 0 ]; then
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echo "No problems!"
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mkdir -p "${DIR_THIS}/results/step${STEP}"
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mv AnalysisResults.root "${DIR_THIS}/results/step${STEP}/AnalysisResults.root"
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mv dpl-config.json "${DIR_THIS}/results/step${STEP}/step${STEP}.json"
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else
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echo "Error: Exit code ${rc}"
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echo "Check the log file ${LOGFILE}"
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exit ${rc}
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fi

‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/run_step1.sh‎

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#!/bin/bash
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# log file where the terminal output will be saved
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STEP="1"
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LOGFILE="log-${STEP}.txt"
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#directory of this script
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DIR_THIS=$PWD
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OPTION="-b --configuration json://configuration_step1.json"
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o2-analysis-lf-cascadespawner "${OPTION}" | o2-analysistutorial-lf-strangeness-pbpb-step1 "${OPTION}" --aod-file @input_data.txt > "$LOGFILE" 2>&1
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# report status
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rc=$?
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if [ $rc -eq 0 ]; then
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echo "No problems!"
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mkdir -p "${DIR_THIS}/results/step${STEP}"
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mv AnalysisResults.root "${DIR_THIS}/results/step${STEP}/AnalysisResults.root"
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mv dpl-config.json "${DIR_THIS}/results/step${STEP}/step${STEP}.json"
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else
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echo "Error: Exit code ${rc}"
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echo "Check the log file ${LOGFILE}"
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exit ${rc}
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fi

‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/run_step2.sh‎

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#!/bin/bash
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# log file where the terminal output will be saved
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STEP="2"
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LOGFILE="log-${STEP}.txt"
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#directory of this script
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DIR_THIS=$PWD
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OPTION="-b --configuration json://configuration_step2.json"
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o2-analysis-lf-cascadespawner "${OPTION}" | o2-analysistutorial-lf-strangeness-pbpb-step2 "${OPTION}" --aod-file @input_data.txt > "$LOGFILE" 2>&1
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# report status
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rc=$?
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if [ $rc -eq 0 ]; then
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echo "No problems!"
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mkdir -p "${DIR_THIS}/results/step${STEP}"
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mv AnalysisResults.root "${DIR_THIS}/results/step${STEP}/AnalysisResults.root"
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mv dpl-config.json "${DIR_THIS}/results/step${STEP}/step${STEP}.json"
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else
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echo "Error: Exit code ${rc}"
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echo "Check the log file ${LOGFILE}"
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exit ${rc}
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fi

‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/run_step3.sh‎

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#!/bin/bash
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# log file where the terminal output will be saved
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STEP="3"
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LOGFILE="log-${STEP}.txt"
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#directory of this script
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DIR_THIS=$PWD
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OPTION="-b --configuration json://configuration_step3.json"
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o2-analysis-lf-cascadepid "${OPTION}" | o2-analysis-lf-cascadespawner "${OPTION}" | o2-analysistutorial-lf-strangeness-pbpb-step3 "${OPTION}" --aod-file @input_data.txt > "$LOGFILE" 2>&1
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# report status
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rc=$?
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if [ $rc -eq 0 ]; then
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echo "No problems!"
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mkdir -p "${DIR_THIS}/results/step${STEP}"
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mv AnalysisResults.root "${DIR_THIS}/results/step${STEP}/AnalysisResults.root"
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mv dpl-config.json "${DIR_THIS}/results/step${STEP}/step${STEP}.json"
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else
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echo "Error: Exit code ${rc}"
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echo "Check the log file ${LOGFILE}"
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exit ${rc}
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fi

‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/run_step4.sh‎

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#!/bin/bash
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# log file where the terminal output will be saved
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STEP="4"
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LOGFILE="log-${STEP}.txt"
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#directory of this script
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DIR_THIS=$PWD
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OPTION="-b --configuration json://configuration_step4.json"
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o2-analysis-lf-cascadepid "${OPTION}" | o2-analysis-lf-cascadespawner "${OPTION}" | o2-analysistutorial-lf-strangeness-pbpb-step4 "${OPTION}" --aod-file @input_data.txt > "$LOGFILE" 2>&1
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# report status
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rc=$?
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if [ $rc -eq 0 ]; then
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echo "No problems!"
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mkdir -p "${DIR_THIS}/results/step${STEP}"
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mv AnalysisResults.root "${DIR_THIS}/results/step${STEP}/AnalysisResults.root"
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mv dpl-config.json "${DIR_THIS}/results/step${STEP}/step${STEP}.json"
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else
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echo "Error: Exit code ${rc}"
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echo "Check the log file ${LOGFILE}"
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exit ${rc}
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fi

‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/strangeness_pbpb_skeleton.cxx‎

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
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// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
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// All rights not expressly granted are reserved.
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//
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// This software is distributed under the terms of the GNU General Public
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// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
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//
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// In applying this license CERN does not waive the privileges and immunities
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// granted to it by virtue of its status as an Intergovernmental Organization
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// or submit itself to any jurisdiction.
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///
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/// \brief Step4 of the Strangeness tutorial
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/// \author Romain Schotter
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/// based on the original codes from:
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/// \author Nepeivoda Roman (roman.nepeivoda@cern.ch)
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/// \author Chiara De Martin (chiara.de.martin@cern.ch)
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#include "Framework/runDataProcessing.h"
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#include "Framework/AnalysisTask.h"
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#include "Common/DataModel/EventSelection.h"
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#include "PWGLF/DataModel/LFStrangenessTables.h"
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#include "Framework/O2DatabasePDGPlugin.h"
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using namespace o2;
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using namespace o2::framework;
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using namespace o2::framework::expressions;
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struct strangeness_pbpb_tutorial {
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// Histograms are defined with HistogramRegistry
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HistogramRegistry rEventSelection{"eventSelection", {}, OutputObjHandlingPolicy::AnalysisObject, true, true};
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// Configurable for histograms
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Configurable<int> nBins{"nBins", 100, "N bins in all histos"};
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// Configurable for event selection
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Configurable<float> cutzvertex{"cutzvertex", 10.0f, "Accepted z-vertex range (cm)"};
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// PDG data base
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Service<o2::framework::O2DatabasePDG> pdgDB;
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void init(InitContext const&)
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{
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// Axes
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AxisSpec vertexZAxis = {nBins, -15., 15., "vrtx_{Z} [cm]"};
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// Histograms
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// Event selection
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rEventSelection.add("hVertexZRec", "hVertexZRec", {HistType::kTH1F, {vertexZAxis}});
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}
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// Defining filters for events (event selection)
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// Processed events will be already fulfilling the event selection requirements
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Filter eventFilter = (o2::aod::evsel::sel8 == true);
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Filter posZFilter = (nabs(o2::aod::collision::posZ) < cutzvertex);
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void process(soa::Filtered<soa::Join<aod::StraCollisions, aod::StraEvSels>>::iterator const& collision)
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{
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// Fill the event counter
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rEventSelection.fill(HIST("hVertexZRec"), collision.posZ());
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}
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};
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WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
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{
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return WorkflowSpec{
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adaptAnalysisTask<strangeness_pbpb_tutorial>(cfgc)};
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}

‎Tutorials/PWGLF/Strangeness/PbPb/Analysis/strangeness_pbpb_step0.cxx‎

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
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// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
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// All rights not expressly granted are reserved.
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//
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// This software is distributed under the terms of the GNU General Public
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// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
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//
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// In applying this license CERN does not waive the privileges and immunities
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// granted to it by virtue of its status as an Intergovernmental Organization
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// or submit itself to any jurisdiction.
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///
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/// \brief Step4 of the Strangeness tutorial
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/// \author Romain Schotter
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/// based on the original codes from:
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/// \author Nepeivoda Roman (roman.nepeivoda@cern.ch)
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/// \author Chiara De Martin (chiara.de.martin@cern.ch)
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#include "Framework/runDataProcessing.h"
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#include "Framework/AnalysisTask.h"
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#include "Common/DataModel/EventSelection.h"
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#include "PWGLF/DataModel/LFStrangenessTables.h"
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#include "Framework/O2DatabasePDGPlugin.h"
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using namespace o2;
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using namespace o2::framework;
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using namespace o2::framework::expressions;
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// STEP 0
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// Starting point: loop over all cascades and fill invariant mass histogram
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struct strangeness_pbpb_tutorial {
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// Histograms are defined with HistogramRegistry
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HistogramRegistry rEventSelection{"eventSelection", {}, OutputObjHandlingPolicy::AnalysisObject, true, true};
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HistogramRegistry rXi{"xi", {}, OutputObjHandlingPolicy::AnalysisObject, true, true};
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HistogramRegistry rOmega{"omega", {}, OutputObjHandlingPolicy::AnalysisObject, true, true};
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// Configurable for histograms
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Configurable<int> nBins{"nBins", 100, "N bins in all histos"};
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// Configurable for event selection
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Configurable<float> cutzvertex{"cutzvertex", 10.0f, "Accepted z-vertex range (cm)"};
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// PDG data base
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Service<o2::framework::O2DatabasePDG> pdgDB;
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void init(InitContext const&)
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{
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// Axes
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AxisSpec XiMassAxis = {100, 1.28f, 1.36f, "#it{M}_{inv} [GeV/#it{c}^{2}]"};
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AxisSpec OmegaMassAxis = {100, 1.63f, 1.7f, "#it{M}_{inv} [GeV/#it{c}^{2}]"};
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AxisSpec vertexZAxis = {nBins, -15., 15., "vrtx_{Z} [cm]"};
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// Histograms
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// Event selection
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rEventSelection.add("hVertexZRec", "hVertexZRec", {HistType::kTH1F, {vertexZAxis}});
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// Xi/Omega reconstruction
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rXi.add("hMassXi", "hMassXi", {HistType::kTH1F, {XiMassAxis}});
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rOmega.add("hMassOmega", "hMassOmega", {HistType::kTH1F, {OmegaMassAxis}});
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}
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// Defining filters for events (event selection)
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// Processed events will be already fulfilling the event selection requirements
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Filter eventFilter = (o2::aod::evsel::sel8 == true);
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Filter posZFilter = (nabs(o2::aod::collision::posZ) < cutzvertex);
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void process(soa::Filtered<soa::Join<aod::StraCollisions, aod::StraEvSels>>::iterator const& collision,
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aod::CascCores const& Cascades)
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{
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// Fill the event counter
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rEventSelection.fill(HIST("hVertexZRec"), collision.posZ());
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// Cascades
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for (const auto& casc : Cascades) {
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rXi.fill(HIST("hMassXi"), casc.mXi());
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rOmega.fill(HIST("hMassOmega"), casc.mOmega());
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}
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}
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};
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WorkflowSpec defineDataProcessing(ConfigContext const& cfgc)
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{
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return WorkflowSpec{
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adaptAnalysisTask<strangeness_pbpb_tutorial>(cfgc)};
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}

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