diff --git a/algo/CMakeLists.txt b/algo/CMakeLists.txt
index a2a052fa4026f62246d4be605c6a50c2217bf65a..0524146a40df5e21ae4af1edf685216eb7e1847c 100644
--- a/algo/CMakeLists.txt
+++ b/algo/CMakeLists.txt
@@ -56,6 +56,7 @@ add_subdirectory(log)
add_subdirectory(data)
add_subdirectory(kf)
add_subdirectory(ca)
+#add_subdirectory(kfp) # For KFParticleOnline
# exclude unittests from being build inside the container
if (NOT CBM_ONLINE_STANDALONE)
@@ -160,6 +161,8 @@ set(SRCS
ca/TrackingSetup.cxx
ca/TrackingChain.cxx
ca/qa/CaQa.cxx
+ kfp/KfpV0Finder.cxx
+ kfp/KfpV0FinderChain.cxx
kfp/KfpV0FinderConfig.cxx
)
diff --git a/algo/global/Reco.cxx b/algo/global/Reco.cxx
index cfde9b3b479f022e9c08c8a77c36db6e10e10e82..7f7de2d060028950de00968556602c9838aa245b 100644
--- a/algo/global/Reco.cxx
+++ b/algo/global/Reco.cxx
@@ -22,6 +22,7 @@
#include "ca/core/data/CaTrack.h"
#include "compat/OpenMP.h"
#include "evbuild/Config.h"
+#include "kfp/KfpV0FinderChain.h"
#include "much/Unpack.h"
#include "qa/QaManager.h"
#include "qa/hitfind/BmonHitfindQa.h"
@@ -275,7 +276,12 @@ void Reco::Init(const Options& opts)
fTrackingEvent->RegisterSetup(pTrackingSetup);
fTrackingEvent->SetContext(&fContext);
fTrackingEvent->Init();
-
+
+ fV0Finder = std::make_unique<V0FinderChain>();
+ fV0Finder->SetContext(&fContext);
+ fV0Finder->Init();
+ }
+
// Initialize the QA manager
if (fQaManager != nullptr) {
fQaManager->Init();
@@ -575,6 +581,11 @@ bool Reco::ReconstructEvent(const DigiEvent& digiEvent)
}
}
+ //* V0-selector
+ {
+ auto triggers = fV0Finder->ProcessEvent(recoEvent);
+ }
+
fEvSelectingMonitor.IncrementCounter(evselect::ECounter::EventsSelected);
return true;
}
diff --git a/algo/global/Reco.h b/algo/global/Reco.h
index 1ab27d58d38cdfbc3da97d6fbcb3d0b9b74a4021..eb8ba804acabac619f33f00f9c84bf5b6074fcee 100644
--- a/algo/global/Reco.h
+++ b/algo/global/Reco.h
@@ -21,6 +21,7 @@ namespace cbm::algo
class HistogramSender;
class Options;
class TrackingChain;
+ class V0FinderChain;
template<class M>
struct UnpackMonitor;
@@ -185,6 +186,9 @@ namespace cbm::algo
std::unique_ptr<TrackingChain> fTracking; ///< Tracking in timeslice
std::unique_ptr<TrackingChain> fTrackingEvent; ///< Tracking in event
+ // V0-finding
+ std::unique_ptr<V0FinderChain> fV0Finder; ///< V0-finding chain (in event or a bunch of events)
+
// Event selection
evselect::Monitor fEvSelectingMonitor; ///< Monitor for event selecting
diff --git a/algo/kfp/KfpV0Finder.cxx b/algo/kfp/KfpV0Finder.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..58ca4293937fe17d28acce2f076541b40eb79c68
--- /dev/null
+++ b/algo/kfp/KfpV0Finder.cxx
@@ -0,0 +1,25 @@
+/* Copyright (C) 2025 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
+ SPDX-License-Identifier: GPL-3.0-only
+ Authors: Sergei Zharko [committer] */
+
+/// \file KfpV0Finder.cxx
+/// \date 01.02.2025
+/// \brief A V0 finding algorithm (implementation)
+/// \author Sergei Zharko <s.zharko@gsi.de>
+
+#include "kfp/KfpV0Finder.h"
+
+using cbm::algo::kfp::V0Finder;
+
+
+// ---------------------------------------------------------------------------------------------------------------------
+//
+void V0Finder::Init() {}
+
+// ---------------------------------------------------------------------------------------------------------------------
+//
+CbmEventTriggers V0Finder::Process(const RecoResults&)
+{
+ CbmEventTriggers res;
+ return res;
+}
diff --git a/algo/kfp/KfpV0Finder.h b/algo/kfp/KfpV0Finder.h
new file mode 100644
index 0000000000000000000000000000000000000000..d0a8a451ae92c3031f57cb1508d58c7f754d14b5
--- /dev/null
+++ b/algo/kfp/KfpV0Finder.h
@@ -0,0 +1,47 @@
+/* Copyright (C) 2025 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
+ SPDX-License-Identifier: GPL-3.0-only
+ Authors: Sergei Zharko [committer] */
+
+/// \file KfpV0Finder.h
+/// \date 01.02.2025
+/// \brief A V0 finding algorithm
+/// \author Sergei Zharko <s.zharko@gsi.de>
+
+#pragma once
+
+#include "CbmEventTriggers.h"
+#include "global/RecoResults.h"
+
+namespace cbm::algo::kfp
+{
+ /// \class V0Finder
+ /// \brief A V0-finding algorithm
+ class V0Finder {
+ public:
+ /// \brief Default constructor
+ V0Finder() = default;
+
+ /// \brief Copy constructor
+ V0Finder(const V0Finder&) = delete;
+
+ /// \brief Move constructor
+ V0Finder(V0Finder&&) = delete;
+
+ /// \brief Destructor
+ ~V0Finder() = default;
+
+ /// \brief Copy assignment operator
+ V0Finder& operator=(const V0Finder&) = delete;
+
+ /// \brief Move assignment operator
+ V0Finder& operator=(V0Finder&&) = delete;
+
+ /// \brief Initializes the instance (called in the beginning of the run)
+ void Init();
+
+ /// \brief Processes a reconstructed data sample, returns a collection of fired triggers
+ CbmEventTriggers Process(const RecoResults& recoEvent);
+
+ private:
+ };
+} // namespace cbm::algo::kfp
diff --git a/algo/kfp/KfpV0FinderChain.cxx b/algo/kfp/KfpV0FinderChain.cxx
new file mode 100644
index 0000000000000000000000000000000000000000..a2a78be1c4679254c29c7a3084902537ce9c8210
--- /dev/null
+++ b/algo/kfp/KfpV0FinderChain.cxx
@@ -0,0 +1,30 @@
+/* Copyright (C) 2025 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
+ SPDX-License-Identifier: GPL-3.0-only
+ Authors: Sergei Zharko [committer] */
+
+/// \file KfpV0FinderChain.cxx
+/// \date 01.02.2025
+/// \brief A chain for V0 finding (implementation)
+/// \author Sergei Zharko <s.zharko@gsi.de>
+
+#include "kfp/KfpV0FinderChain.h"
+
+#include "log/AlgoFairloggerCompat.h"
+
+using cbm::algo::V0FinderChain;
+
+// ---------------------------------------------------------------------------------------------------------------------
+//
+void V0FinderChain::Finalize() {}
+
+// ---------------------------------------------------------------------------------------------------------------------
+//
+void V0FinderChain::Init()
+{
+ L_(info) << "Initializing the V0-finder chain ...";
+ L_(info) << "Initializing the V0-finder chain ... done";
+}
+
+// ---------------------------------------------------------------------------------------------------------------------
+//
+CbmEventTriggers V0FinderChain::ProcessEvent(const RecoResults& recoEvent) { return fV0Finder.Process(recoEvent); }
diff --git a/algo/kfp/KfpV0FinderChain.h b/algo/kfp/KfpV0FinderChain.h
new file mode 100644
index 0000000000000000000000000000000000000000..e3582f93167d8c369a738dd9409a3d55c73013a3
--- /dev/null
+++ b/algo/kfp/KfpV0FinderChain.h
@@ -0,0 +1,53 @@
+/* Copyright (C) 2025 GSI Helmholtzzentrum fuer Schwerionenforschung, Darmstadt
+ SPDX-License-Identifier: GPL-3.0-only
+ Authors: Sergei Zharko [committer] */
+
+/// \file KfpV0FinderChain.h
+/// \date 01.02.2025
+/// \brief A chain for V0 finding
+/// \author Sergei Zharko <s.zharko@gsi.de>
+
+#pragma once
+
+#include "CbmEventTriggers.h"
+#include "base/SubChain.h"
+#include "global/RecoResults.h"
+#include "kfp/KfpV0Finder.h"
+
+namespace cbm::algo
+{
+ /// \class V0FinderChain
+ /// \brief A chain for the V0 finder
+ class V0FinderChain : public SubChain {
+ public:
+ /// \brief Default constructor
+ V0FinderChain() = default;
+
+ /// \brief Copy constructor
+ V0FinderChain(const V0FinderChain&) = delete;
+
+ /// \brief Move constructor
+ V0FinderChain(V0FinderChain&&) = delete;
+
+ /// \brief Destructor
+ ~V0FinderChain() = default;
+
+ /// \brief Copy assignment operator
+ V0FinderChain& operator=(const V0FinderChain&) = delete;
+
+ /// \brief Move assignment operator
+ V0FinderChain& operator=(V0FinderChain&&) = delete;
+
+ /// \brief Finalizes the instance (called in the end of the run)
+ void Finalize();
+
+ /// \brief Initializes the instance (called in the beginning of the run)
+ void Init();
+
+ /// \brief Processes an event, returns a collection of fired triggers
+ CbmEventTriggers ProcessEvent(const RecoResults& recoEvent);
+
+ private:
+ kfp::V0Finder fV0Finder; ///< Instance of the V0-finding algorithm
+ };
+} // namespace cbm::algo
diff --git a/core/data/CbmEventTriggers.h b/core/data/CbmEventTriggers.h
index ce1b8de535825650cfb3e6cbf77661bbf44c36c5..365d286e505137cabe5551fe180a53d4a2572318 100644
--- a/core/data/CbmEventTriggers.h
+++ b/core/data/CbmEventTriggers.h
@@ -9,6 +9,9 @@
#pragma once
+#include <cstdint>
+#include <string>
+
#if !defined(NO_ROOT) && !XPU_IS_HIP_CUDA
#include <Rtypes.h> // for ClassDef
#endif