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da0e9ce3 | 1 | //-------------------------------------------------------------------------- |
2 | // | |
3 | // Environment: | |
4 | // This software is part of the EvtGen package developed jointly | |
5 | // for the BaBar and CLEO collaborations. If you use all or part | |
6 | // of it, please give an appropriate acknowledgement. | |
7 | // | |
8 | // Copyright Information: See EvtGen/COPYRIGHT | |
9 | // Copyright (C) 1998 Caltech, UCSB | |
10 | // | |
11 | // Module: EvtGen/EvtTensor3C.hh | |
12 | // | |
13 | // Description: Class to handle complex 3 tensors | |
14 | // | |
15 | // Modification history: | |
16 | // | |
17 | // RYD September 14, 1997 Module created | |
18 | // | |
19 | //------------------------------------------------------------------------ | |
20 | ||
21 | #ifndef EVTTENSOR3C_HH | |
22 | #define EVTTENSOR3C_HH | |
23 | ||
24 | #include <iostream> | |
25 | #include "EvtGenBase/EvtComplex.hh" | |
26 | ||
27 | class EvtVector3C; | |
28 | class EvtVector3R; | |
29 | ||
30 | class EvtTensor3C; | |
31 | ||
0ca57c2f | 32 | namespace EvtGenFunctions { |
33 | EvtTensor3C eps(const EvtVector3R& v); | |
34 | EvtTensor3C rotateEuler(const EvtTensor3C& v, | |
35 | double phi,double theta,double ksi); | |
36 | EvtTensor3C directProd(const EvtVector3C& c1,const EvtVector3C& c2); | |
37 | EvtTensor3C directProd(const EvtVector3C& c1,const EvtVector3R& c2); | |
38 | EvtTensor3C directProd(const EvtVector3R& c1,const EvtVector3R& c2); | |
39 | }; | |
da0e9ce3 | 40 | |
41 | class EvtTensor3C { | |
da0e9ce3 | 42 | friend EvtTensor3C operator*( |
43 | const EvtComplex& c,const EvtTensor3C& t2); | |
0ca57c2f | 44 | friend EvtTensor3C operator*(const double d,const EvtTensor3C& t2); |
da0e9ce3 | 45 | friend EvtTensor3C operator*( |
46 | const EvtTensor3C& t2,const EvtComplex& c); | |
0ca57c2f | 47 | friend EvtTensor3C operator*(const EvtTensor3C& t2,const double d); |
da0e9ce3 | 48 | friend EvtTensor3C operator+( |
49 | const EvtTensor3C& t1,const EvtTensor3C& t2); | |
50 | friend EvtTensor3C operator-( | |
51 | const EvtTensor3C& t1,const EvtTensor3C& t2); | |
0ca57c2f | 52 | friend EvtTensor3C EvtGenFunctions::directProd(const EvtVector3C& c1,const EvtVector3C& c2); |
53 | friend EvtTensor3C EvtGenFunctions::directProd(const EvtVector3C& c1,const EvtVector3R& c2); | |
54 | friend EvtTensor3C EvtGenFunctions::directProd(const EvtVector3R& c1,const EvtVector3R& c2); | |
da0e9ce3 | 55 | friend EvtTensor3C conj(const EvtTensor3C& t2); |
56 | //Contract the second index of two tensors result(i,j) = t1(i,k)t2(j,k) | |
57 | friend EvtTensor3C cont22(const EvtTensor3C& t1,const EvtTensor3C& t2); | |
58 | //Contract the first index of two tensors result(i,j) = t1(k,i)t2(k,j) | |
59 | friend EvtTensor3C cont11(const EvtTensor3C& t1,const EvtTensor3C& t2); | |
60 | //Contract the last index of eps_{ijk} with w | |
0ca57c2f | 61 | friend EvtTensor3C EvtGenFunctions::eps(const EvtVector3R& v); |
da0e9ce3 | 62 | friend std::ostream& operator<<(std::ostream& c,const EvtTensor3C& v); |
63 | ||
64 | public: | |
65 | EvtTensor3C(); | |
66 | EvtTensor3C(const EvtTensor3C& t1 ); | |
67 | EvtTensor3C(double d11, double d22, double d33); | |
68 | virtual ~EvtTensor3C(); | |
69 | EvtTensor3C& operator=(const EvtTensor3C& t1); | |
70 | inline void set(int i,int j,const EvtComplex& c); | |
71 | inline const EvtComplex& get(int i, int j) const; | |
72 | inline EvtComplex trace() const; | |
73 | static const EvtTensor3C& id(); | |
74 | void zero(); | |
75 | void applyRotateEuler(double phi,double theta,double ksi); | |
76 | ||
77 | EvtTensor3C operator+=(const EvtTensor3C& t2); | |
78 | EvtTensor3C operator-=(const EvtTensor3C& t2); | |
0ca57c2f | 79 | EvtTensor3C operator*=(const double d); |
da0e9ce3 | 80 | EvtTensor3C operator*=(const EvtComplex& c); |
81 | EvtTensor3C conj() const; | |
82 | EvtVector3C cont1(const EvtVector3C& v) const; | |
83 | EvtVector3C cont2(const EvtVector3C& v) const; | |
84 | EvtVector3C cont1(const EvtVector3R& v) const; | |
85 | EvtVector3C cont2(const EvtVector3R& v) const; | |
86 | ||
87 | private: | |
88 | ||
89 | EvtComplex t[3][3]; | |
90 | ||
91 | }; | |
92 | ||
93 | inline EvtTensor3C operator*(const EvtComplex& c,const EvtTensor3C& t2){ | |
94 | return EvtTensor3C(t2)*=c; | |
95 | } | |
96 | ||
97 | inline EvtTensor3C operator*(const double d,const EvtTensor3C& t2){ | |
98 | return EvtTensor3C(t2)*=d; | |
99 | } | |
100 | ||
101 | inline EvtTensor3C operator*(const EvtTensor3C& t2,const EvtComplex& c){ | |
102 | return EvtTensor3C(t2)*=c; | |
103 | } | |
104 | ||
0ca57c2f | 105 | inline EvtTensor3C operator*(const EvtTensor3C& t2,const double d){ |
da0e9ce3 | 106 | return EvtTensor3C(t2)*=d; |
107 | } | |
108 | ||
109 | inline EvtTensor3C operator+(const EvtTensor3C& t1,const EvtTensor3C& t2){ | |
110 | return EvtTensor3C(t1)+=t2; | |
111 | } | |
112 | ||
113 | inline EvtTensor3C operator-(const EvtTensor3C& t1,const EvtTensor3C& t2){ | |
114 | return EvtTensor3C(t1)-=t2; | |
115 | } | |
116 | ||
117 | inline void EvtTensor3C::set(int i,int j,const EvtComplex& c){ | |
118 | t[i][j]=c; | |
119 | } | |
120 | ||
121 | inline const EvtComplex& EvtTensor3C::get(int i,int j) const{ | |
122 | return t[i][j]; | |
123 | } | |
124 | ||
125 | inline EvtComplex EvtTensor3C::trace() const{ | |
126 | return t[0][0]+t[1][1]+t[2][2]; | |
127 | } | |
128 | ||
129 | #endif | |
130 |