Muon scouting

Clone repository from GitHub with:

git clone --recursive https://github.com/cmstas/run3_scouting.git

Full workflow is divided in three stages:

1. Production of skims reading from RAW/AODSIM. It processes and stores trigger and tracker information.
2. Production of ntuples reading from the skimmed datasets.
3. Analysis, including histogram plotting, fitting and limit derivation.

Each part is described below, but a set of example commands to reproduce some of the plots of the analysis is collected in Section Running the analysis.

Skimming

The skimming code resides in batch/.

The skimming code runs on RAW data sets, and produces a skimmed RAW data set as output with additional information, mainly:

• HLT and L1T flags;
• tracker information (number of expected muon tracker layers, position of displaced vertices relative to tracker modules).

Looper (C++)

The C++ looper resides in cpp/.

The looper runs on skimmed RAW data sets, and produces a flat tree as output. Please, refer to README in cpp/ for further instructions. Condor submission is set up in condor/.

Quick submission (for both 2022 and 2023):

runScoutingLooper_onCondor.sh looperOutput_Dec-04-2023
runScoutingLooper_onCondor.sh 2023 looperOutput_Dec-04-2023

Histograms:

Histogram filling:

Histograms are filled by fillHistosScouting.py, and written in a ROOT output file. This PyROOT looper optionally applies selections on multi-muon system kinematics and displacement. Condor submission is set up in condor/.

Histograms are defined in utils/histDefinition.py: please, add your histograms there, following the existing structure.

Example to run the histogram filling for 2022 (default) and 2023:

sh condor/runScoutingHistos_onCondor.sh /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_Dec-04-2023/ outputHistograms_Dec-09-2023_allCuts
sh condor/runScoutingHistos_onCondor.sh 2023 /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_Dec-04-2023/ outputHistograms_Dec-09-2023_allCuts

... with some selection e.g. the lxy range in [6.5, 11.0] cm:

sh condor/runScoutingHistos_onCondor.sh /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_Dec-04-2023/ outputHistograms_Dec-09-2023_6p5to11p0_allCuts --lxySel 6.5 11.0
sh condor/runScoutingHistos_onCondor.sh 2023 /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_Dec-04-2023/ outputHistograms_Dec-09-2023_6p5to11p0_allCuts --lxySel 6.5 11.0

... with a cut not applied e.g the impact parameter selection:

sh condor/runScoutingHistos_onCondor.sh /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_Dec-04-2023/ outputHistograms_Dec-09-2023_6p5to11p0_noMuonIPSel --lxySel 6.5 11.0 --noMuonIPSel
sh condor/runScoutingHistos_onCondor.sh 2023 /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_Dec-04-2023/ outputHistograms_Dec-09-2023_6p5to11p0_noMuonIPSel --lxySel 6.5 11.0 --noMuonIPSel

Histogram plotting:

For plotting output histograms: plotHistosScouting.py. E.g.:

• in order to plot/compare different eras from directory with same selection:

python3 plotHistosScouting.py --inSamples Data --inDir /ceph/cms/store/user/mmasciov/Run3ScoutingOutput/outputHistograms_Aug-02-2023_all/ --doRatio --shape --doRatio --logY

• in order to plot/compare data with different selection (i.e., from different directories), e.g., with different lxy selections on the dimuon system:

python3 plotHistosScouting.py --inSamples Data --inMultiDir /ceph/cms/store/user/mmasciov/Run3ScoutingOutput/outputHistograms_Aug-02-2023_dimuonMass2p95to3p25_relaxedSVselection_onlyDiMuon/ /ceph/cms/store/user/mmasciov/Run3ScoutingOutput/outputHistograms_Aug-02-2023_dimuonMass2p5to2p95-3p25to3p4_relaxedSVselection_onlyDiMuon/ --inMultiLeg "J/#psi" "J/#psi sidebands" --doRatio --relaxedSVSel --dimuonMassSel 2.5 3.4 --shape --doRatio --logY  --noPreSel --noFourMuon --noFourMuonOSV --outSuffix JPsi

• in order to make a simple comparison data and signal (assuming 1 pb xsec):

python3 plotHistosScouting.py --inSamples Data Signal_HTo2ZdTo2mu2x_MZd-2p0_ctau-10mm Signal_HTo2ZdTo2mu2x_MZd-7p0_ctau-10mm Signal_ScenB1_30_9p9_4p8_ctau_10mm --inDir run3out/outputHistograms_Dec-09-2023_allCuts --logY --dimuonMassSel 0.0 11.0 --weightSignal --outSuffix 2022_weighted_allCuts

• in order to make a simple comparison data and signal (normalized to unity):

python3 plotHistosScouting.py --inSamples Data Signal_HTo2ZdTo2mu2x_MZd-2p0_ctau-10mm Signal_HTo2ZdTo2mu2x_MZd-7p0_ctau-10mm Signal_ScenB1_30_9p9_4p8_ctau_10mm --inDir run3out/outputHistograms_Dec-09-2023_allCuts --logY --dimuonMassSel 0.0 11.0 --shape --outSuffix 2022_norm_allCuts

In order to get help with all (optional and required) arguments, just execute the script with no argument:

python3 plotHistosScouting.py

Other histogram manipulation scripts:

Other scripts to hadd histogram files from a directory, or to merge histograms with different selections (i.e., in different directories) are available in scripts/:

• addHistosScouting.py: to hadd histogram files from a directory;
• mergeHistograms.py: to merge histograms with different selections.

bash scripts to locally submit jobs are avaiable in the same directory. E.g., to hadd histograms within a directory for all data sub-samples:

source scripts/submitLocalAddHistosScouting.sh

Fitting

To run a set of fits just run:

sh cpp/setFittingEnv.sh
root -b -q -l -n cpp/doAll_fitDimuonMass.C

Remember to properly set the period and input paths inside before running

Limit extraction

Combine in condor

If running limits for the first time:

git clone https://github.com/cms-analysis/HiggsAnalysis-CombinedLimit.git HiggsAnalysis/CombinedLimit
pushd HiggsAnalysis/CombinedLimit
git fetch origin
git checkout v9.1.0
. env_standalone.sh
make

Then launch with condor with:

sh condor/limits/runLimits_onCondor.sh <datacard directory> <limit output directory> <year>

model and other parameters are specified in the corresponding .sub file.

To wrap the limits results:

python3 combineScripts/readAsymptoticLimits.py <model> <limit output directory> <year>

which will create a txt file with the relevant upper limits in the previous limit output directory.

To plot them:

python3 combineScripts/plot1DLimits.py <model> <limit output directory> <ctau> <year>

which will create the png limit plot.

Running the analysis

This set of commands assumed that we are taking the ntuples as starting point (skimmer and looper should have been run before). Latest sets of ntupels are available here:

2022: /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_2022_Feb-05-2024/
2023: /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_2023_May-26-2024/

You may need to setup the environment as described above in the relevant setions

Plotting the variables and getting RooDataSets for invariant mass spectra

Init with:

source cpp/setup.sh

To obtain general plots for 2022 and 2023 you have to run the filler. Cuts are applied automatically, and $m_{\mu\mu}$ spectra are filled in the form of both TH1D's and a RooDataSets for each Signal Region (SR):

sh condor/runScoutingHistos_onCondor.sh /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_2022_Feb-05-2024 outputHistograms_Jun-14-2024_allCuts
sh condor/runScoutingHistos_onCondor.sh 2023 /ceph/cms/store/user/fernance/Run3ScoutingOutput/looperOutput_2023_May-26-2024/ outputHistograms_Jun-14-2024_allCuts

Then run the plotter on the generated outputs e.g.

python3 plotHistosScouting.py --inSamples Data Signal_HTo2ZdTo2mu2x_MZd-2p0_ctau-10mm Signal_HTo2ZdTo2mu2x_MZd-5p0_ctau-10mm Signal_HTo2ZdTo2mu2x_MZd-7p0_ctau-10mm --inDir /ceph/cms/store/user/fernance/Run3ScoutingOutput/outputHistograms_Jun-14-2024_allCuts --logY --outSuffix 2022_allCuts_shape --year 2022 --extraLabelBold "Dimuon" --extraLabel "All cuts" --pdf (--shape)
python3 plotHistosScouting.py --inSamples Data Signal_HTo2ZdTo2mu2x_MZd-2p0_ctau-10mm Signal_HTo2ZdTo2mu2x_MZd-5p0_ctau-10mm Signal_HTo2ZdTo2mu2x_MZd-7p0_ctau-10mm --inDir /ceph/cms/store/user/fernance/Run3ScoutingOutput/outputHistograms_Jun-14-2024_allCuts --logY --outSuffix 2023_allCuts_shape --year 2023 --extraLabelBold "Dimuon" --extraLabel "All cuts" --pdf (--shape)

If you want to go directly to fitting, you can just fill the spectra and RooDataSet's in the filling step.

Fitting mass windows

Init with:

source cpp/setFittingEnv.sh

To fit the mass windows, modify the lines within cpp/doAll_fitDimuonMass.C to define period and inDir. With the examples below:

2022: period=2022, inDir=/ceph/cms/store/user/fernance/Run3ScoutingOutput/outputHistograms_Jun-14-2024_allCuts
2023: period=2023, inDir=/ceph/cms/store/user/fernance/Run3ScoutingOutput/outputHistograms_Jun-14-2024_allCuts

Then run once for each period:

root -b -q -l -n cpp/doAll_fitDimuonMass.C

Which will create fitResults_2022 and fitResults_2023.

Make datacards

python3 make_datacards.py 2022
python3 make_datacards.py 2023

Limit extraction

Make sure you have followed the steps for setup in #{combine-in-condor} and

sh condor/limits/runLimits_onCondor.sh datacards_all_Jun-14-2024_2022 limits_Jun-14-2024_2022 2022
sh condor/limits/runLimits_onCondor.sh datacards_all_Jun-14-2024_2023 limits_Jun-14-2024_2023 2023

Then, for extracting the result in the output directories:

python3 combineScripts/readAsymptoticLimits.py HTo2ZdTo2mu2x /ceph/cms/store/user/fernance/Run3ScoutingOutput/limits_Jun-14-2024_2022 2022
python3 combineScripts/readAsymptoticLimits.py HTo2ZdTo2mu2x /ceph/cms/store/user/fernance/Run3ScoutingOutput/limits_Jun-14-2024_2023 2023

And finally for plotting (may be needed to change options in the script):

python3 combineScripts/plot1DLimits.py HTo2ZdTo2mu2x /ceph/cms/store/user/fernance/Run3ScoutingOutput/limits_Jun-14-2024_2022 1 2022
python3 combineScripts/plot1DLimits.py HTo2ZdTo2mu2x /ceph/cms/store/user/fernance/Run3ScoutingOutput/limits_Jun-14-2024_2022 10 2022
python3 combineScripts/plot1DLimits.py HTo2ZdTo2mu2x /ceph/cms/store/user/fernance/Run3ScoutingOutput/limits_Jun-14-2024_2022 100 2022
python3 combineScripts/plot1DLimits.py HTo2ZdTo2mu2x /ceph/cms/store/user/fernance/Run3ScoutingOutput/limits_Jun-14-2024_2023 1 2023
python3 combineScripts/plot1DLimits.py HTo2ZdTo2mu2x /ceph/cms/store/user/fernance/Run3ScoutingOutput/limits_Jun-14-2024_2023 10 2023
python3 combineScripts/plot1DLimits.py HTo2ZdTo2mu2x /ceph/cms/store/user/fernance/Run3ScoutingOutput/limits_Jun-14-2024_2023 100 2023

Draft analysis code with uproot and coffea

This is a draft of some potential analysis code, based on uproot and coffea. To install on the uaf, run source bootstrap.sh (only required once). Then, ./shell will start the singularity container.

Inside scouting/, run python minimal.py. `