Phase2-L1Nano

NanoAOD ntupler for Phase-2 L1 Objects

Setup

This is for version V38 that is based on the IB tag phase2-l1t-1400pre3_v9 with these instructions: https://twiki.cern.ch/twiki/bin/view/CMSPublic/SWGuideL1TPhase2Instructions#Recipe_for_phase2_l1t_1400pre3_v9

Corresponding menu twiki section: https://twiki.cern.ch/twiki/bin/view/CMS/PhaseIIL1TriggerMenuTools#Phase_2_L1_Trigger_objects_for_2

cmsrel CMSSW_14_0_0_pre3
cd CMSSW_14_0_0_pre3/src/
cmsenv
git cms-init
git cms-checkout-topic -u cms-l1t-offline:phase2-l1t-1400pre3_v9

### ADDING NANO
git clone git@github.com:cms-l1-dpg/Phase2-L1Nano.git PhysicsTools/L1Nano
scram b -j 8

Usage

Direct config

In the test directory there is a cmsRun config to rerun the L1 + (L1 Track trigger) + the P2GT emulator and produce the nano ntuple from these outputs.

Usage: cmsRun test/V38_rerunL1wTT_cfg.py

Via cmsDriver

One can append the L1Nano output to the cmsDriver command via this customisation:

--eventcontent NANOAOD
-s USER:PhysicsTools/L1Nano/l1tPh2Nano_cff.l1tPh2NanoTask --customise PhysicsTools/L1Nano/l1tPh2Nano_cff.addFullPh2L1Nano

cmsDriver command (NO Track Trigger, based on the 1400pre3 recipe from the Offline SW twiki:

cmsDriver.py step1 --conditions 131X_mcRun4_realistic_v9 -n 1000 --era Phase2C17I13M9 --eventcontent NANOAOD -s RAW2DIGI,L1,L1P2GT,USER:PhysicsTools/L1Nano/l1tPh2Nano_cff.l1tPh2NanoTask --customise PhysicsTools/L1Nano/l1tPh2Nano_cff.addFullPh2L1Nano --datatier GEN-SIM-DIGI-RAW-MINIAOD --fileout file:test.root --customise SLHCUpgradeSimulations/Configuration/aging.customise_aging_1000,Configuration/DataProcessing/Utils.addMonitoring,L1Trigger/Configuration/customisePhase2.addHcalTriggerPrimitives --geometry Extended2026D95 --nThreads 8 --filein /store/mc/Phase2Spring23DIGIRECOMiniAOD/TT_TuneCP5_14TeV-powheg-pythia8/GEN-SIM-DIGI-RAW-MINIAOD/PU200_L1TFix_Trk1GeV_131X_mcRun4_realistic_v9-v1/50000/005bc30b-cf79-4b3b-9ec1-a80e13072afd.root --mc --inputCommands="keep *, drop l1tPFJets_*_*_*, drop l1tTrackerMuons_l1tTkMuonsGmt_*_*" --outputCommands="drop l1tPFJets_*_*_*, drop l1tTrackerMuons_l1tTkMuonsGmt_*_*" 

Output

The output file is a nanoAOD file with the output branches in the Events tree.

An overview of the corresponding content is shown here: https://alobanov.web.cern.ch/L1T/Phase2/L1Nano/l1menu_nano_V38_1400pre3V9_doc_report.html

Size report: https://alobanov.web.cern.ch/L1T/Phase2/L1Nano/l1menu_nano_V38_1400pre3V9_size_report.html

Example:

['run',
 'luminosityBlock',
 'event',
 'bunchCrossing',
 'nL1caloJet',
 'L1caloJet_et',
 'L1caloJet_eta',
 'L1caloJet_phi',
 'L1caloJet_pt',
 'L1caloJet_z0',
 'nL1caloTau',
 'L1caloTau_eta',
 'L1caloTau_phi',
 'L1caloTau_pt',
 'nGenJet',
 'GenJet_eta',
 'GenJet_mass',
 ...

This can be easily handled with uproot/awkward like this:

f = uproot.open("l1nano.root")
events = f["Events"].arrays() 

P2GT emulator decisions

The GT emulator decisions are stored like this for now:

'nL1GT', -> number of algorithms, the names are not stored, but are alphabetically sorted
'L1GT_final', -> final decision
'L1GT_initial', -> initial decision (no difference at the moment)