Import Geant4 10.0.0 source tree

2016-06-10 11:51:14 +02:00
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+//
+// ********************************************************************
+// * License and Disclaimer                                           *
+// *                                                                  *
+// * The  Geant4 software  is  copyright of the Copyright Holders  of *
+// * the Geant4 Collaboration.  It is provided  under  the terms  and *
+// * conditions of the Geant4 Software License,  included in the file *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.  Please see the license in the file  LICENSE  and URL above *
+// * for the full disclaimer and the limitation of liability.         *
+// *                                                                  *
+// * This  code  implementation is the result of  the  scientific and *
+// * technical work of the GEANT4 collaboration.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+// $Id$
+//
+// Abstract base class for multibody uniform phase space generators.
+// Subclasses implement a specific algorithm, such as Kopylov, GENBOD,
+// or Makoto's NBody.  Subclasses are used by G4HadDecayGenerator.
+//
+// Author:	Michael Kelsey (SLAC) <kelsey@slac.stanford.edu>
+
+#ifndef G4VHadPhaseSpaceAlgorithm_HH
+#define G4VHadPhaseSpaceAlgorithm_HH 1
+
+#include "globals.hh"
+#include "G4VHadDecayAlgorithm.hh"
+#include "G4LorentzVector.hh"
+#include "G4ThreeVector.hh"
+#include <vector>
+#include <iosfwd>
+
+class G4VHadPhaseSpaceAlgorithm : public G4VHadDecayAlgorithm {
+public:
+  G4VHadPhaseSpaceAlgorithm(const G4String& algName, G4int verbose=0)
+    : G4VHadDecayAlgorithm(algName, verbose) {;}
+  virtual ~G4VHadPhaseSpaceAlgorithm() {;}
+
+protected:
+  // Multi-body function remains pure-virtual from base class
+
+  // Two-body uniform distribution is common to all algorithms
+  virtual void GenerateTwoBody(G4double initialMass,
+			       const std::vector<G4double>& masses,
+			       std::vector<G4LorentzVector>& finalState);
+
+  // Sample spherical distribution
+  G4ThreeVector UniformVector(G4double mag=1.) const;
+};
+
+#endif	/* G4VHadPhaseSpaceAlgorithm_HH */