Feat: add process function for photons for PbPb

Author: ariedel-cern

PWGCF/Femto/TableProducer/femtoProducer.cxx

@@ -669,6 +669,29 @@ struct FemtoProducer {
   }
   PROCESS_SWITCH(FemtoProducer, processTracksV0sCascadesRun3PbPbWithEventShape, "Provide tracks, v0s and cascades in PbPb collisions with event shape information", false);
 
+  void processTracksV0sCascadesPhotonsRun3PbPbWithEventShape(rawinputs::Run3PbPbCollisionsWithEventShape::iterator const& col,
+                                                             o2::aod::BCsWithTimestamps const& bcs,
+                                                             rawinputs::Run3FullPidTracks const& tracks,
+                                                             rawinputs::Run3Vzeros const& v0s,
+                                                             rawinputs::Run3Cascades const& cascades,
+                                                             o2::aod::V0PhotonsKF const& photons,
+                                                             o2::aod::V0Legs const& v0legs)
+  {
+    if (!processCollisions<modes::System::kPbPb_Run3>(col, bcs, tracks)) {
+      return;
+    }
+    auto tracksWithItsPid = o2::soa::Attach<rawinputs::Run3FullPidTracks, o2::aod::pidits::ITSNSigmaEl, o2::aod::pidits::ITSNSigmaPi, o2::aod::pidits::ITSNSigmaKa,
+                                            o2::aod::pidits::ITSNSigmaPr, o2::aod::pidits::ITSNSigmaDe, o2::aod::pidits::ITSNSigmaTr, o2::aod::pidits::ITSNSigmaHe>(tracks);
+    processTracks<modes::System::kPbPb_Run3>(col, tracksWithItsPid);
+    processV0s<modes::System::kPbPb_Run3>(col, tracks, v0s);
+    processCascades<modes::System::kPbPb_Run3>(col, tracks, cascades);
+    // V0PhotonsKF/V0Legs carry a plain CollisionId column (not a framework index column), so they
+    // are not auto-grouped by the DPL binder and must be sliced manually, same as EMPhotonFilter.cxx
+    auto photonsThisCol = photons.sliceBy(perColRecoPCMPhotons, col.globalIndex());
+    processPhotons<modes::System::kPbPb_Run3>(col, photonsThisCol, v0legs);
+  }
+  PROCESS_SWITCH(FemtoProducer, processTracksV0sCascadesPhotonsRun3PbPbWithEventShape, "Provide tracks, v0s, cascades and PCM photons in PbPb collisions with event shape information", false);
+
   void processTracksKinksRun3pp(rawinputs::Run3PpCollisions::iterator const& col,
                                 o2::aod::BCsWithTimestamps const& bcs,
                                 rawinputs::Run3FullPidTracks const& tracks,