[PWGLF] [PWGMM] Adding output AO2D to store bc timestamp & ZDC times for OO VdM analysis (#14099)

Author: lmattei01

PWGMM/Lumi/Tasks/lumiStabilityLightIons.cxx

@@ -22,6 +22,8 @@
 #include "CCDB/BasicCCDBManager.h"
 #include "DataFormatsParameters/AggregatedRunInfo.h"
 #include "DataFormatsParameters/GRPLHCIFData.h"
+#include "Framework/ASoA.h"
+#include "Framework/AnalysisDataModel.h"
 #include "Framework/AnalysisTask.h"
 #include "Framework/runDataProcessing.h"
 
@@ -36,9 +38,22 @@ using namespace o2::framework::expressions;
 
 o2::common::core::MetadataHelper metadataInfo; // Metadata helper
 
+namespace o2::aod
+{
+namespace myBc_aod
+{
+DECLARE_SOA_COLUMN(Timestamp, timestamp, uint64_t);
+DECLARE_SOA_COLUMN(TimeZNA, timeZNA, float);
+DECLARE_SOA_COLUMN(TimeZNC, timeZNC, float);
+} // namespace myBc_aod
+DECLARE_SOA_TABLE(MyBCaod, "AOD", "MYBCAOD", myBc_aod::Timestamp, myBc_aod::TimeZNA, myBc_aod::TimeZNC);
+} // namespace o2::aod
+
 using MyBCs = soa::Join<aod::BCs, aod::BcSels, aod::Timestamps, aod::Run3MatchedToBCSparse>;
 
 struct LumiStabilityLightIons {
+  Produces<aod::MyBCaod> BCaod;
+
   Configurable<bool> cfgDoFT0Vtx{"cfgDoFT0Vtx", true, "Create and fill histograms for the FT0 vertex trigger"};
   Configurable<bool> cfgDoFT0CE{"cfgDoFT0CE", true, "Create and fill histograms for the FT0 centrality trigger"};
   Configurable<bool> cfgDoFDD{"cfgDoFDD", true, "Create and fill histograms for the FDD trigger"};
@@ -55,6 +70,11 @@ struct LumiStabilityLightIons {
 
   Configurable<int> cfgEmptyBCsBeforeLeadingBC{"cfgEmptyBCsBeforeLeadingBC", 5, "Minimum number of empty BCs before a leading BC to identify it as such"};
 
+  // Configurables specific to VdM analysis: output ao2d with timestamps and ZDC times
+  Configurable<bool> cfgFillBCao2d{"cfgFillBCao2d", false, "Fill BC ao2d with timestamps and ZDC times"};
+  Configurable<uint64_t> cfgTstampStartFillingBCao2d{"cfgTstampStartFillingBCao2d", 0, "Minimum value of timestamp for output bc ao2d to be filled"};
+  Configurable<uint64_t> cfgTstampEndFillingBCao2d{"cfgTstampEndFillingBCao2d", 0, "Maximum value of timestamp for output bc ao2d to be filled"};
+
   std::bitset<o2::constants::lhc::LHCMaxBunches> beamPatternA, beamPatternC;
   std::bitset<o2::constants::lhc::LHCMaxBunches> bcPatternA, bcPatternC, bcPatternB, bcPatternE, bcPatternL;
 
@@ -252,6 +272,12 @@ struct LumiStabilityLightIons {
       }
 
       mHistManager.fill(HIST("ZDCQA/ZDCTimes"), timeZNA, timeZNC);
+
+      // For VdM analysis: fill timestamps and ZDC times in output tree, if enabled
+      uint64_t timestamp = bc.timestamp();
+      if (cfgFillBCao2d && timestamp >= cfgTstampStartFillingBCao2d && timestamp <= cfgTstampEndFillingBCao2d) {
+        BCaod(timestamp, timeZNA, timeZNC);
+      }
     }
   }
   PROCESS_SWITCH(LumiStabilityLightIons, processZDCQA, "process QA for the ZDC triggers (light ions and PbPb)", false);