ALICE 3: add FastTracker

ALICE3/Core/CMakeLists.txt

@@ -15,6 +15,14 @@ o2physics_add_library(ALICE3Core
                       PUBLIC_LINK_LIBRARIES O2::Framework O2Physics::AnalysisCore)
 
 o2physics_target_root_dictionary(ALICE3Core
-                                 HEADERS TOFResoALICE3.h
-                                         DelphesO2TrackSmearer.h
-                                 LINKDEF ALICE3CoreLinkDef.h)
+                      HEADERS TOFResoALICE3.h
+                              DelphesO2TrackSmearer.h
+                      LINKDEF ALICE3CoreLinkDef.h)
+
+o2physics_add_library(FastTracker
+                      SOURCES FastTracker.cxx
+                      PUBLIC_LINK_LIBRARIES O2::Framework O2Physics::AnalysisCore)
+
+o2physics_target_root_dictionary(FastTracker
+                      HEADERS FastTracker.h
+                      LINKDEF FastTrackerLinkDef.h)

ALICE3/Core/DetLayer.h

@@ -0,0 +1,49 @@
+// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
+// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
+// All rights not expressly granted are reserved.
+//
+// This software is distributed under the terms of the GNU General Public
+// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
+//
+// In applying this license CERN does not waive the privileges and immunities
+// granted to it by virtue of its status as an Intergovernmental Organization
+// or submit itself to any jurisdiction.
+
+///
+/// \file   DetLayer.h
+/// \author David Dobrigkeit Chinellato
+/// \since  11/03/2021
+/// \brief  Basic struct to hold information regarding a detector layer to be used in fast simulation
+///
+
+#ifndef ALICE3_CORE_DETLAYER_H_
+#define ALICE3_CORE_DETLAYER_H_
+
+#include "TString.h"
+
+namespace o2::fastsim
+{
+
+struct DetLayer {
+  // TString for holding name
+  TString name;
+
+  // position variables
+  float r; // radius in centimeters
+  float z; // z dimension in centimeters
+
+  // material variables
+  float x0;   // radiation length
+  float xrho; // density
+
+  // resolution variables for active layers
+  float resRPhi; // RPhi resolution in centimeters
+  float resZ;    // Z resolution in centimeters
+
+  // efficiency
+  float eff; // detection efficiency
+};
+
+} // namespace o2::fastsim
+
+#endif // ALICE3_CORE_DETLAYER_H_