1 /////////////////////////////////////////////////////////////////////////////
3 // AliFemtoKTPairCut - a pair cut which selects pairs based on their //
4 // transverse momentum kT //
6 /////////////////////////////////////////////////////////////////////////////
7 /***************************************************************************
9 * $Id: AliFemtoKTPairCut.cxx,v 1.1.2.2 2007/11/09 11:20:35 akisiel Exp $
11 * Author: Adam Kisiel, Ohio State, kisiel@mps.ohio-state.edu
12 ***************************************************************************
14 * Description: part of STAR HBT Framework: AliFemtoMaker package
15 * a cut to remove "shared" and "split" pairs
17 ***************************************************************************
20 **************************************************************************/
21 #include "AliFemtoKTPairCut.h"
27 ClassImp(AliFemtoKTPairCut)
31 AliFemtoKTPairCut::AliFemtoKTPairCut():
44 AliFemtoKTPairCut::AliFemtoKTPairCut(double lo, double hi) :
55 AliFemtoKTPairCut::AliFemtoKTPairCut(const AliFemtoKTPairCut& c) :
73 AliFemtoKTPairCut::~AliFemtoKTPairCut(){
77 /*bool AliFemtoKTPairCut::Pass(const AliFemtoPair* pair){
80 if (pair->KT() < fKTMin)
83 if (pair->KT() > fKTMax)
89 AliFemtoString AliFemtoKTPairCut::Report(){
90 // Prepare a report from the execution
91 string stemp = "AliFemtoKT Pair Cut \n"; char ctemp[100];
92 sprintf(ctemp,"Accept pair with kT in range %f , %f",fKTMin,fKTMax);
93 sprintf(ctemp,"Accept pair with angle in range %f , %f",fPhiMin,fPhiMax);
95 AliFemtoString returnThis = stemp;
99 TList *AliFemtoKTPairCut::ListSettings()
101 // return a list of settings in a writable form
102 TList *tListSetttings = new TList();
104 snprintf(buf, 200, "AliFemtoKTPairCut.ktmax=%f", fKTMax);
105 tListSetttings->AddLast(new TObjString(buf));
106 snprintf(buf, 200, "AliFemtoKTPairCut.ktmin=%f", fKTMin);
107 tListSetttings->AddLast(new TObjString(buf));
108 snprintf(buf, 200, "AliFemtoKTPairCut.phimax=%f", fPhiMax);
109 tListSetttings->AddLast(new TObjString(buf));
110 snprintf(buf, 200, "AliFemtoKTPairCut.phimin=%f", fPhiMin);
111 tListSetttings->AddLast(new TObjString(buf));
112 snprintf(buf, 200, "AliFemtoKTPairCut.ptmin=%f", fPtMin);
113 tListSetttings->AddLast(new TObjString(buf));
114 snprintf(buf, 200, "AliFemtoKTPairCut.ptmax=%f", fPtMax);
115 tListSetttings->AddLast(new TObjString(buf));
117 return tListSetttings;
120 void AliFemtoKTPairCut::SetKTRange(double ktmin, double ktmax)
126 void AliFemtoKTPairCut::SetPhiRange(double phimin, double phimax)
132 void AliFemtoKTPairCut::SetPTMin(double ptmin, double ptmax)
138 //______________________________________________________
139 bool AliFemtoKTPairCut::Pass(const AliFemtoPair* pair)
143 //Taking care of the Kt cut
144 if (pair->KT() < fKTMin)
147 if (pair->KT() > fKTMax)
150 if (!temp) return temp;
152 if ((fPtMin > 0.0) && (fPtMax<1000.0)) {
153 double px1 = pair->Track1()->Track()->P().x();
154 double py1 = pair->Track1()->Track()->P().y();
156 double px2 = pair->Track2()->Track()->P().x();
157 double py2 = pair->Track2()->Track()->P().y();
159 double pt1 = TMath::Hypot(px1, py1);
160 double pt2 = TMath::Hypot(px2, py2);
162 if ((pt1<fPtMin) || (pt1>fPtMax)) return false;
163 if ((pt2<fPtMin) || (pt2>fPtMax)) return false;
166 //Taking care of the Phi cut
167 double rpangle = (pair->GetPairAngleEP())*180/TMath::Pi();
169 if (rpangle > 180.0) rpangle -= 180.0;
170 if (rpangle < 0.0) rpangle += 180.0;
173 if ((rpangle > fPhiMax) && (rpangle < 180.0+fPhiMin))
177 if ((rpangle < fPhiMin) || (rpangle > fPhiMax))
183 //_____________________________________
184 bool AliFemtoKTPairCut::Pass(const AliFemtoPair* pair, double aRPAngle)
186 //The same as above, but it is defined with RP Angle as input in all the Correlatin function classes.
188 bool temp = (aRPAngle > 0.);