[Trigger,PWGEM] add global dimuon trigger under PWGEM

[dsekihat]

This is a dimuon trigger with 2 global muons for low mass vector mesons and continuum analyses in PWGEM. The selectivity of this trigger is about 5e-5.

[github-actions]

O2 linter results: ❌ 128 errors, ⚠️ 37 warnings, 🔕 0 disabled

[alibuild]

Error while checking build/O2Physics/o2 for 58fd0d8 at 2026-01-09 11:44:

[8/57] Linking CXX executable stage/bin/o2-analysis-central-event-filter-task
[WARN] Missing configuration json file: full_config.json
[INFO] NucleiFilters not present in the configuration, removing it.
[INFO] DiffractionFilters not present in the configuration, removing it.
[INFO] DqFilters not present in the configuration, removing it.
[INFO] HfFilters not present in the configuration, removing it.
[INFO] CFFilters not present in the configuration, removing it.
[INFO] JetFilters not present in the configuration, removing it.
[INFO] JetHFFilters not present in the configuration, removing it.
[INFO] FullJetFilters not present in the configuration, removing it.
[INFO] StrangenessFilters not present in the configuration, removing it.
[INFO] MultFilters not present in the configuration, removing it.
[INFO] PhotonFilters not present in the configuration, removing it.
[INFO] F1ProtonFilters not present in the configuration, removing it.
[INFO] DoublePhiFilters not present in the configuration, removing it.
[INFO] HeavyNeutralMesonFilters not present in the configuration, removing it.
[INFO] GlobalDimuonFilters not present in the configuration, removing it.
[9/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-em-photon-filter-qc.dir/PWGEM/EMPhotonFilterQC.cxx.o
[10/57] Linking CXX executable stage/bin/o2-analysis-em-photon-filter-qc
[11/57] Building CXX object ALICE3/TableProducer/OTF/CMakeFiles/O2Physicsexe-analysis-on-the-fly-tracker-pid.dir/onTheFlyTrackerPid.cxx.o
[12/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-mult-filter.dir/PWGMM/multFilter.cxx.o
[13/57] Linking CXX executable stage/bin/o2-analysis-on-the-fly-tracker-pid
[14/57] Linking CXX executable stage/bin/o2-analysis-mult-filter
[15/57] Building CXX object PWGMM/Mult/Tasks/CMakeFiles/O2Physicsexe-analysis-mm-flattenicty-chrg.dir/flattenicty-chrg.cxx.o
[16/57] Linking CXX executable stage/bin/o2-analysis-mm-flattenicty-chrg
[17/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-lf-doublephi-filter.dir/PWGLF/filterdoublephi.cxx.o
[18/57] Linking CXX executable stage/bin/o2-analysis-lf-doublephi-filter
[19/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-hf-filter-charm-hadron-signals.dir/PWGHF/HFFilterCharmHadronSignals.cxx.o
[20/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-em-global-dimuon-filter.dir/PWGEM/globalDimuonFilter.cxx.o
[21/57] Linking CXX executable stage/bin/o2-analysis-hf-filter-charm-hadron-signals
[22/57] Linking CXX executable stage/bin/o2-analysis-em-global-dimuon-filter
[23/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-em-photon-filter.dir/PWGEM/EMPhotonFilter.cxx.o
[24/57] Linking CXX executable stage/bin/o2-analysis-em-photon-filter
[25/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-hf-filter-prepare-ml-samples.dir/PWGHF/HFFilterPrepareMLSamples.cxx.o
[26/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-diffraction-filter.dir/PWGUD/diffractionFilter.cxx.o
[27/57] Linking CXX executable stage/bin/o2-analysis-hf-filter-prepare-ml-samples
[28/57] Linking CXX executable stage/bin/o2-analysis-diffraction-filter
[29/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-diffraction-bcfilter.dir/PWGUD/diffractionBCFilter.cxx.o
[30/57] Linking CXX executable stage/bin/o2-analysis-diffraction-bcfilter
[31/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-heavy-neutral-meson-filter.dir/PWGEM/HeavyNeutralMesonFilter.cxx.o
[32/57] Linking CXX executable stage/bin/o2-analysis-heavy-neutral-meson-filter
[33/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-lf-strangeness-filter.dir/PWGLF/strangenessFilter.cxx.o
[34/57] Linking CXX executable stage/bin/o2-analysis-lf-strangeness-filter
[35/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-nuclei-filter.dir/PWGLF/nucleiFilter.cxx.o
[36/57] Linking CXX executable stage/bin/o2-analysis-nuclei-filter
[37/57] Building CXX object PWGDQ/Tasks/CMakeFiles/O2Physicsexe-analysis-dq-filter-pp-with-association.dir/filterPPwithAssociation.cxx.o
[38/57] Linking CXX executable stage/bin/o2-analysis-dq-filter-pp-with-association
[39/57] Building CXX object PWGDQ/Tasks/CMakeFiles/O2Physicsexe-analysis-dq-filter-pp.dir/filterPP.cxx.o
[40/57] Linking CXX executable stage/bin/o2-analysis-dq-filter-pp
[41/57] Building CXX object EventFiltering/CMakeFiles/O2Physicsexe-analysis-lf-f1proton-filter.dir/PWGLF/filterf1proton.cxx.o

Full log here.