Photon Gradient Boosted Tree Filter

CODEOWNERS

@@ -5,6 +5,7 @@
 # @c-dilks                     Christopher Dilks
 # @RichCap                     Richard Capobianco
 # @rtysonCLAS12                Richard Tyson
+# @Gregtom3                    Gregory Matousek
 #################################################################################
 
 * @c-dilks
@@ -13,3 +14,4 @@ src/iguana/algorithms/clas12/ZVertexFilter/* @rtysonCLAS12
 src/iguana/algorithms/clas12/SectorFinder/* @rtysonCLAS12
 src/iguana/algorithms/clas12/FTEnergyCorrection/* @asligonulacar
 src/iguana/services/YAMLReader.* @rtysonCLAS12 @c-dilks
+src/iguana/algorithms/clas12/PhotonGBTFilter/* @Gregtom3

src/iguana/algorithms/Algorithm.h

@@ -9,6 +9,7 @@
 
 #include <hipo4/bank.h>
 
+
 #include "iguana/algorithms/AlgorithmBoilerplate.h"
 #include "iguana/services/Object.h"
 #include "iguana/services/YAMLReader.h"

src/iguana/algorithms/TypeDefs.h

@@ -15,42 +15,66 @@ namespace iguana {
   /// 3-vector container type
   using vector3_t = std::tuple<vector_element_t, vector_element_t, vector_element_t>;
   /// 4-vector container type
-  using vector4_t = std::tuple<vector_element_t, vector_element_t, vector_element_t, vector_element_t>;
+  using vector4_t = std::tuple<vector_element_t, vector_element_t, vector_element_t, vector_element_t>;   
 
   /// Light-weight namespace for particle constants
   namespace particle {
     // clang-format off
 
     /// PDG codes
     enum PDG {
-      electron = 11,
-      pi_plus  = 211,
-      pi_minus = -211,
-      proton   = 2212
+      electron     = 11,
+      photon       = 22,
+      proton       = 2212,
+      antiproton   = -2212,
+      neutron      = 2112,
+      antineutron  = -2112,
+      pi_plus      = 211,
+      pi_minus     = -211,
+      kaon_plus    = 321,
+      kaon_minus   = -321
     };
 
     /// Particle names
     const std::unordered_map<PDG, std::string> name{
       { electron, "electron" },
-      { pi_plus,  "pi_plus"  },
+      { photon, "photon" },
+      { proton, "proton" },
+      { antiproton, "antiproton" },
+      { neutron, "neutron" },
+      { antineutron, "antineutron" },
+      { pi_plus, "pi_plus" },
       { pi_minus, "pi_minus" },
-      { proton,   "proton"   }
+      { kaon_plus, "kaon_plus" },
+      { kaon_minus, "kaon_minus" }
     };
 
     /// Particle titles
     const std::unordered_map<PDG, std::string> title{
-      { electron, "e^{-}"   },
-      { pi_plus,  "#pi^{+}" },
+      { electron, "e^{-}" },
+      { photon, "#gamma" },
+      { proton, "p" },
+      { antiproton, "#bar{p}" },
+      { neutron, "n" },
+      { antineutron, "#bar{n}" },
+      { pi_plus, "#pi^{+}" },
       { pi_minus, "#pi^{-}" },
-      { proton,   "p"       }
+      { kaon_plus, "K^{+}" },
+      { kaon_minus, "K^{-}" }
     };
 
     /// Particle mass in GeV
     const std::unordered_map<PDG, double> mass{
-      { electron, 0.00051099895000 },
-      { pi_plus,  0.13957039       },
-      { pi_minus, 0.13957039       },
-      { proton,   0.93827208816    }
+      { electron, 0.000511 },
+      { photon, 0.0 },
+      { proton, 0.938272 },
+      { antiproton, 0.938272 },
+      { neutron, 0.939565 },
+      { antineutron, 0.939565 },
+      { pi_plus, 0.139570 },
+      { pi_minus, 0.139570 },
+      { kaon_plus, 0.493677 },
+      { kaon_minus, 0.493677 }
     };
 
     // clang-format on