1 /////////////////////////////////////////////////////////////////////////////
3 // AliFemtoShareQualityPairCut - a pair cut which checks for some pair //
4 // qualities that attempt to identify slit/doubly reconstructed tracks //
6 /////////////////////////////////////////////////////////////////////////////
7 /***************************************************************************
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 **************************************************************************/
22 #include "AliFemtoShareQualityPairCut.h"
27 ClassImp(AliFemtoShareQualityPairCut)
31 AliFemtoShareQualityPairCut::AliFemtoShareQualityPairCut():
34 fShareQualityMax(1.0),
35 fShareFractionMax(1.0),
38 // Default constructor
42 AliFemtoShareQualityPairCut::~AliFemtoShareQualityPairCut(){
45 AliFemtoShareQualityPairCut& AliFemtoShareQualityPairCut::operator=(const AliFemtoShareQualityPairCut& cut)
48 AliFemtoPairCut::operator=(cut);
51 fShareQualityMax = cut.fShareQualityMax;
52 fShareFractionMax = cut.fShareFractionMax;
53 fRemoveSameLabel = cut.fRemoveSameLabel;
59 bool AliFemtoShareQualityPairCut::Pass(const AliFemtoPair* pair){
60 // Check for pairs that are possibly shared/double reconstruction
67 if ((fShareFractionMax < 1.0) && ( fShareQualityMax < 1.0)) {
68 for (unsigned int imap=0; imap<pair->Track1()->Track()->TPCclusters().GetNbits(); imap++) {
69 // If both have clusters in the same row
70 if (pair->Track1()->Track()->TPCclusters().TestBitNumber(imap) &&
71 pair->Track2()->Track()->TPCclusters().TestBitNumber(imap)) {
73 if (pair->Track1()->Track()->TPCsharing().TestBitNumber(imap) &&
74 pair->Track2()->Track()->TPCsharing().TestBitNumber(imap))
76 // cout << "A shared cluster !!!" << endl;
77 // cout << "imap idx1 idx2 "
79 // << tP1idx[imap] << " " << tP2idx[imap] << endl;
85 // Different hits on the same padrow
91 else if (pair->Track1()->Track()->TPCclusters().TestBitNumber(imap) ||
92 pair->Track2()->Track()->TPCclusters().TestBitNumber(imap)) {
93 // One track has a hit, the other does not
100 Float_t hsfval = 0.0;
106 // if (hsmval > -0.4) {
107 // cout << "Pair quality: " << hsmval << " " << an << " " << nh << " "
108 // << (pair->Track1()->Track()) << " "
109 // << (pair->Track2()->Track()) << endl;
110 // cout << "Bits: " << pair->Track1()->Track()->TPCclusters().GetNbits() << endl;
112 // if (hsfval > 0.0) {
113 // cout << "Pair sharity: " << hsfval << " " << ns << " " << nh << " " << hsmval << " " << an << " " << nh << endl;
116 temp = (hsmval < fShareQualityMax) && (hsfval < fShareFractionMax);
121 if (fRemoveSameLabel) {
122 if (abs(pair->Track1()->Track()->Label()) == abs(pair->Track2()->Track()->Label())) {
123 // cout << "Found a pair with same label " << pair->Track1()->Track()->Label() << endl;
124 // cout << "Quality Sharity Passed " << hsmval << " " << hsfval << " " << pair->QInv() << " " << temp << endl;
129 temp ? fNPairsPassed++ : fNPairsFailed++;
133 AliFemtoString AliFemtoShareQualityPairCut::Report(){
134 // Prepare the report from the execution
135 string stemp = "AliFemtoShareQuality Pair Cut - remove shared and split pairs\n"; char ctemp[100];
136 snprintf(ctemp , 100, "Number of pairs which passed:\t%ld Number which failed:\t%ld\n",fNPairsPassed,fNPairsFailed);
138 AliFemtoString returnThis = stemp;
142 void AliFemtoShareQualityPairCut::SetShareQualityMax(Double_t aShareQualityMax) {
143 fShareQualityMax = aShareQualityMax;
146 Double_t AliFemtoShareQualityPairCut::GetAliFemtoShareQualityMax() const {
147 return fShareQualityMax;
150 void AliFemtoShareQualityPairCut::SetShareFractionMax(Double_t aShareFractionMax) {
151 fShareFractionMax = aShareFractionMax;
153 Double_t AliFemtoShareQualityPairCut::GetAliFemtoShareFractionMax() const {
154 return fShareFractionMax;
157 TList *AliFemtoShareQualityPairCut::ListSettings()
159 // return a list of settings in a writable form
160 TList *tListSetttings = new TList();
162 snprintf(buf, 200, "AliFemtoShareQualityPairCut.sharequalitymax=%f", fShareQualityMax);
163 snprintf(buf, 200, "AliFemtoShareQualityPairCut.sharefractionmax=%f", fShareFractionMax);
164 tListSetttings->AddLast(new TObjString(buf));
166 return tListSetttings;
169 void AliFemtoShareQualityPairCut::SetRemoveSameLabel(Bool_t aRemove)
171 fRemoveSameLabel = aRemove;