[PWGEM] Generator for gap ratio of 2, needed for MC HF production scan

MC/config/PWGEM/ini/GeneratorHFGapTriggered_BeautyForcedDecay_Gap2.ini

@@ -0,0 +1,6 @@
+[GeneratorExternal]
+fileName = ${O2DPG_ROOT}/MC/config/PWGEM/external/generator/Generator_pythia8_GapTriggered_HFLepton.C
+funcName = GeneratorPythia8GapTriggeredBeautyForcedDecays(2,2)
+
+[GeneratorPythia8]
+config = ${O2DPG_ROOT}/MC/config/PWGEM/pythia8/generator/configPythiaEmpty.cfg

MC/config/PWGEM/ini/GeneratorHFGapTriggered_BeautyNoForcedDecay_Gap2.ini

@@ -0,0 +1,6 @@
+[GeneratorExternal]
+fileName = ${O2DPG_ROOT}/MC/config/PWGEM/external/generator/Generator_pythia8_GapTriggered_HFLepton.C
+funcName = GeneratorPythia8GapTriggeredBeautyNoForcedDecays(2,3)
+
+[GeneratorPythia8]
+config = ${O2DPG_ROOT}/MC/config/PWGEM/pythia8/generator/configPythiaEmpty.cfg

MC/config/PWGEM/ini/GeneratorHFGapTriggered_Charm_Gap2.ini

@@ -0,0 +1,6 @@
+[GeneratorExternal]
+fileName = ${O2DPG_ROOT}/MC/config/PWGEM/external/generator/Generator_pythia8_GapTriggered_HFLepton.C
+funcName = GeneratorPythia8GapTriggeredCharmLepton(2,1)
+
+[GeneratorPythia8]
+config = ${O2DPG_ROOT}/MC/config/PWGEM/pythia8/generator/configPythiaEmpty.cfg

MC/run/PWGEM/runAnchoredHFGapToDielectrons_pp_Gap2.sh

@@ -0,0 +1,60 @@
+#!/bin/bash
+
+#
+# Steering script for HF enhanced dielectron MC anchored to LHC22o apass6
+#
+
+# example anchoring
+# taken from https://its.cern.ch/jira/browse/O2-4586
+export ALIEN_JDL_LPMANCHORPASSNAME=apass6
+export ALIEN_JDL_MCANCHOR=apass6
+export ALIEN_JDL_CPULIMIT=8
+export ALIEN_JDL_LPMRUNNUMBER=526641
+export ALIEN_JDL_LPMPRODUCTIONTYPE=MC
+export ALIEN_JDL_LPMINTERACTIONTYPE=pp
+export ALIEN_JDL_LPMPRODUCTIONTAG=LHC24a2
+export ALIEN_JDL_LPMANCHORRUN=526641
+export ALIEN_JDL_LPMANCHORPRODUCTION=LHC22o
+export ALIEN_JDL_LPMANCHORYEAR=2022
+export ALIEN_JDL_OUTPUT=*.dat@disk=1,*.txt@disk=1,*.root@disk=2
+
+export NTIMEFRAMES=1
+export NSIGEVENTS=20
+export SPLITID=100
+export PRODSPLIT=153
+export CYCLE=0
+
+# on the GRID, this is set and used as seed; when set, it takes precedence over SEED
+#export ALIEN_PROC_ID=2963436952
+export SEED=0
+
+# for pp and 50 events per TF, we launch only 4 workers.
+export NWORKERS=2
+
+# define the generator via ini file
+# use 20/40/40 sampling for different generators
+# generate random number
+RNDSIG=$(($RANDOM % 100))
+
+
+if [[ $RNDSIG -ge 0 && $RNDSIG -lt 20 ]];
+then
+        CONFIGNAME="GeneratorHFGapTriggered_Charm_Gap2.ini"
+elif [[ $RNDSIG -ge 20 && $RNDSIG -lt 40 ]];
+then
+        CONFIGNAME="GeneratorHFGapTriggered_BeautyForcedDecay_Gap2.ini"
+elif [[ $RNDSIG -ge 40 && $RNDSIG -lt 100 ]];
+then
+        CONFIGNAME="GeneratorHFGapTriggered_BeautyNoForcedDecay_Gap2.ini"
+fi
+
+export ALIEN_JDL_ANCHOR_SIM_OPTIONS="-gen external -ini $O2DPG_ROOT/MC/config/PWGEM/ini/$CONFIGNAME"
+
+# run the central anchor steering script; this includes
+# * derive timestamp
+# * derive interaction rate
+# * extract and prepare configurations (which detectors are contained in the run etc.)
+# * run the simulation (and QC)
+# To disable QC, uncomment the following line
+#export DISABLE_QC=1
+${O2DPG_ROOT}/MC/run/ANCHOR/anchorMC.sh