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[PWGLF] Add single-channel K1(1270) and Omega(2012) injection configs for ML signal samples (pp 13.6 and 5.36 TeV) - #2497
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njacazio merged 4 commits intoOct 8, 2026
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October 8, 2026 07:49
… for ML signal samples One stratum (charge x decay channel) per job: one injected parent per pp 13.6 TeV inelastic event, no gap, |y| < 0.7, flat pT (K1: 0-8 GeV/c, Omega(2012): 0-15 GeV/c), finite-width sampling with generator_pythia8_LF_rapidity_width.C. - K1(1270)+-: K rho0 (rho0 -> pi+ pi-) and K*(892) pi (K* -> K pi) - Omega(2012)-+: Xi K0S and Xi(1530)0 K (Xi(1530)0 -> Xi pi) The forced-decay tables are new files; resonances_width.cfg and the existing recipes are unchanged. Branching fractions are forced to unity and must be weighted in the analysis. Xi, Lambda and K0S are decayed by the transport code with their natural branching fractions. Each INI redirects to a per-channel test that requires exactly one injected parent per event and the forced chain for both charges; parents produced in the underlying event are counted but not checked.
…Omega(2012) ML injection configs Same 8 strata, gun configurations and forced-decay tables as the pp 13.6 TeV INIs; only the underlying-event configuration differs (pythia8_inel_pp536tev.cfg, pythia8_OO_536.cfg). The per-channel tests are renamed without the collision-system suffix and shared by all INIs.
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added 2 commits
October 8, 2026 08:26
The generator CI requires every changed test macro to match an INI file name; the other INIs of the channel redirect to it with #--->.
generator_pythia8_LF_rapidity_width.C builds the underlying event in a separate Pythia object, while GeneratorPythia8::updateHeader reads the heavy-ion information of the base object, which never generated an event: o2-sim crashes in getNcoll with the Angantyr OO configuration (the existing GeneratorLF_ResonancesBaryonic_OO_injection.ini crashes in the same way). To be revisited once the macro handles heavy-ion backgrounds.
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Oct 8, 2026
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Adds per-channel injection recipes for ML signal samples. One stratum (charge × decay channel) per job:
one injected parent per pp 13.6 TeV inelastic event (no gap), |y| < 0.7, flat pT, finite-width sampling
with the existing
generator_pythia8_LF_rapidity_width.C.GeneratorLF_ResonancesML_*_pp1360.ini)K1Plus/K1Minus_RhoKK1Plus/K1Minus_KstarPiOmega2012Minus/Plus_XiK0sOmega2012Minus/Plus_Xi1530Kresonance_ml_*.cfg);resonances_width.cfgand the existing recipes are unchanged.the transport code with their natural branching fractions.
charges; parents from the underlying event are counted but not checked.
Tested locally with the steps of
test/run_generator_tests.sh(dpl-eventgen,o2-sim --noGeant -n 100,generic kine test, INI test): all 8 INIs pass. The same configurations, run through the full anchored
workflow (Run 551498,
-ns 100), gave reconstructed truth-matched candidates in the O2Physics analysis.