1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
|
#ifndef D0RunIIconeJets_PROTOJET
#define D0RunIIconeJets_PROTOJET
// ---------------------------------------------------------------------------
// ProtoJet.hpp
//
// Created: 28-JUL-2000 Francois Touze (+ Laurent Duflot)
//
// Purpose: Implements a proto-jet object that is used as input by the
// Improved Legacy Cone Algorithm split/merge algo.
//
// Modified:
// 9-Aug-2000 Laurent Duflot
// + save the initial stable cone ET before split/merge
// 1-May-2007 Lars Sonnenschein
// extracted from D0 software framework and modified to remove subsequent dependencies
//
//
// This file is distributed with FastJet under the terms of the GNU
// General Public License (v2). Permission to do so has been granted
// by Lars Sonnenschein and the D0 collaboration (see COPYING for
// details)
//
// History of changes in FastJet compared tothe original version of
// ProtoJet.hpp
//
// 2011-12-13 Gregory Soyez <soyez@fastjet.fr>
//
// * added license information
//
// 2011-11-14 Gregory Soyez <soyez@fastjet.fr>
//
// * changed the name of a few parameters to avoid a gcc
// -Wshadow warning
//
// 2009-01-17 Gregory Soyez <soyez@fastjet.fr>
//
// * put the code in the fastjet::d0 namespace
//
// 2007-12-14 Gavin Salam <salam@lpthe.jussieu.fr>
//
// * replaced make_pair by std::make_pair
//
// ---------------------------------------------------------------------------
//#include "kinem_util/AnglesUtil.hpp"
//#include "energycluster/ConeJetInfo.hpp"
#include "ConeJetInfo.hpp"
#include <list>
#include <cmath>
#include "inline_maths.h" //ls
#include <fastjet/internal/base.hh>
FASTJET_BEGIN_NAMESPACE
namespace d0{
using namespace inline_maths;
using namespace D0RunIIconeJets_CONEJETINFO;
inline float RD2(float y1,float phi1,float y2,float phi2)
{
float dphi= delta_phi(phi1,phi2);
return (y1-y2)*(y1-y2)+dphi*dphi;
}
inline float RDelta(float y1,float phi1,float y2,float phi2)
{
float dphi= delta_phi(phi1,phi2);
return sqrt((y1-y2)*(y1-y2)+dphi*dphi);
}
inline float P2y(float* p4vec) {
return y(p4vec[3],p4vec[2]);
}
inline float P2phi(float* p4vec) {
return phi(p4vec[0],p4vec[1]);
}
///////////////////////////////////////////////////////////////////////////////
template <class Item>
class ProtoJet {
public :
ProtoJet(float seedET);
ProtoJet(float seedET,float y,float phi);
ProtoJet(const ProtoJet<Item>& pj);
~ProtoJet() {;}
void addItem(const Item* tw);
void setJet(float y,float phi,float pT);
void updateJet();
void erase();
float y() const;
float phi() const;
float pT() const;
const ConeJetInfo & info() const;
const std::list<const Item*>& LItems() const;
void print(std::ostream &os) const;
// actions to be taken when the jet is a stable cone
void NowStable();
// declare the jet to have been splitted
void splitted(){_info.splitted();};
// declare the jet to have been merged
void merged(){_info.merged();};
protected :
std::list<const Item*> _LItems;
float _y;
float _phi;
float _pT;
ConeJetInfo _info;
};
///////////////////////////////////////////////////////////////////////////////
template<class Item>
ProtoJet<Item>::ProtoJet(float seedET) : _LItems(), _info(seedET) {
_y = 0.0;
_phi= 0.0;
_pT = 0.0;
}
template<class Item>
ProtoJet<Item>::ProtoJet(float seedET,float y_in,float phi_in) : _LItems(), _info(seedET) {
_y = y_in;
_phi= phi_in;
_pT = 0.0;
}
template<class Item>
ProtoJet<Item>::ProtoJet(const ProtoJet<Item>& pj): _y(pj._y),
_phi(pj._phi), _pT(pj._pT),
_info(pj._info)
{
typename std::list<const Item*>::const_iterator it;
for(it = pj._LItems.begin(); it != pj._LItems.end(); ++it) {
_LItems.push_back(*it);
}
}
template<class Item>
void ProtoJet<Item>::addItem(const Item* tw) {
_LItems.push_back(tw);
}
template<class Item>
void ProtoJet<Item>::setJet(float y_in,float phi_in,float pT_in) {
_y = y_in;
_phi= phi_in;
_pT = pT_in;
}
template<class Item>
void ProtoJet<Item>::updateJet() {
//float ETsum = 0.0;
//float ysum = 0.0;
//float PHIsum= 0.0;
float p[4] = {0.,0.,0.,0.};
typename std::list<const Item*>::iterator it;
for(it = _LItems.begin(); it != _LItems.end(); ++it)
{
float pk[4];
(*it)->p4vec(pk);
//cout << "updateJet: px=" << pk[0] << " py=" << pk[1] << " pz=" << pk[2] << " E=" << pk[3] << endl;
for ( int i = 0; i < 4 ; ++i) p[i] += pk[i];
}
_y = P2y(p);
_phi = P2phi(p);
_pT = sqrt(p[0]*p[0] + p[1]*p[1]);
if ( p[3] < 0. ) _pT = - _pT;
}
template<class Item>
void ProtoJet<Item>::erase() {
_LItems.erase(_LItems.begin(),_LItems.end());
_y = 0.0;
_phi= 0.0;
_pT = 0.0;
// _info is not modified in order to keep split/merge history
}
// actions to be taken when the jet is a stable cone
template<class Item>
void ProtoJet<Item>::NowStable() {
_info.initialET(_pT);
}
template<class Item>
void ProtoJet<Item>::print(std::ostream& os) const {
os<<"y phi Et = ("<<_y<<", "<<_phi<<", "<<this->_Et<<")"<<std::endl;
os<< " members= " << std::endl;
typename std::list<const Item*>::const_iterator i;
for(i = _LItems.begin(); i != _LItems.end(); ++i)
(*i)->print(os);
os << std::endl;
}
template<class Item>
inline float ProtoJet<Item>::y() const{
return _y;
}
template<class Item>
inline float ProtoJet<Item>::phi() const{
return _phi;
}
template<class Item>
inline float ProtoJet<Item>::pT() const{
return _pT;
}
template<class Item>
inline const ConeJetInfo & ProtoJet<Item>::info() const{
return _info;
}
template<class Item>
inline const std::list<const Item*>& ProtoJet<Item>::LItems() const{
return _LItems;
}
///////////////////////////////////////////////////////////////////////////////
} // namespace d0
FASTJET_END_NAMESPACE
#endif
|
