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0001 // @(#)root/mathcore:$Id$ 0002 // Authors: W. Brown, M. Fischler, L. Moneta 2005 0003 0004 /********************************************************************** 0005 * * 0006 * Copyright (c) 2005 , LCG ROOT MathLib Team * 0007 * * 0008 * * 0009 **********************************************************************/ 0010 0011 // Header file for class LorentzVectorfwd 0012 // 0013 // Created by: moneta at Tue May 31 21:06:43 2005 0014 // 0015 // Last update: Tue May 31 21:06:43 2005 0016 // 0017 #ifndef ROOT_Math_Vector4Dfwd 0018 #define ROOT_Math_Vector4Dfwd 1 0019 0020 0021 namespace ROOT { 0022 0023 namespace Math { 0024 0025 0026 // forward declarations of Lorentz Vectors and type defs definitions 0027 0028 template<class CoordSystem> class LorentzVector; 0029 0030 template<typename T> class PxPyPzE4D; 0031 template<typename T> class PtEtaPhiE4D; 0032 template<typename T> class PxPyPzM4D; 0033 template<typename T> class PtEtaPhiM4D; 0034 // template<typename T> class EEtaPhiMSystem; 0035 0036 0037 // for LorentzVector have only double classes (define the vector in the global ref frame) 0038 0039 /** 0040 LorentzVector based on x,y,x,t (or px,py,pz,E) coordinates in double precision with metric (-,-,-,+) 0041 0042 To use it add the line `#include <Math/Vector4D.h>` 0043 0044 See the documentation on the LorentzVector page. 0045 */ 0046 typedef LorentzVector<PxPyPzE4D<double> > XYZTVector; 0047 // for consistency 0048 typedef LorentzVector<PxPyPzE4D<double> > PxPyPzEVector; 0049 0050 0051 /** 0052 LorentzVector based on x,y,x,t (or px,py,pz,E) coordinates in float precision with metric (-,-,-,+) 0053 0054 To use it add the line `#include <Math/Vector4D.h>` 0055 0056 See the documentation on the LorentzVector page. 0057 */ 0058 typedef LorentzVector< PxPyPzE4D <float> > XYZTVectorF; 0059 0060 0061 /** 0062 LorentzVector based on the x, y, z, and Mass in double precision 0063 0064 To use it add the line `#include <Math/Vector4D.h>` 0065 0066 See the documentation on the LorentzVector page. 0067 */ 0068 typedef LorentzVector<PxPyPzM4D<double> > PxPyPzMVector; 0069 0070 /** 0071 LorentzVector based on the cylindrical coordinates Pt, eta, phi and E (rho, eta, phi, t) in double precision 0072 0073 To use it add the line `#include <Math/Vector4D.h>` 0074 0075 See the documentation on the LorentzVector page. 0076 */ 0077 typedef LorentzVector<PtEtaPhiE4D<double> > PtEtaPhiEVector; 0078 0079 /** 0080 LorentzVector based on the cylindrical coordinates pt, eta, phi and Mass in double precision 0081 0082 To use it add the line `#include <Math/Vector4D.h>` 0083 0084 See the documentation on the LorentzVector page. 0085 */ 0086 typedef LorentzVector<PtEtaPhiM4D<double> > PtEtaPhiMVector; 0087 0088 // /** 0089 // LorentzVector based on the coordinates E, Eta, Phi and Mass in double precision. These coordinates are normally used to represents a cluster objects in a calorimeter at a collider experiment. 0090 // */ 0091 // typedef BasicLorentzVector<EEtaPhiMSystem<double> > LorentzVectorEEtaPhiM; 0092 0093 0094 0095 } // end namespace Math 0096 0097 } // end namespace ROOT 0098 0099 #endif 0100
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