36{
37
38 int nGood=iGood.size();
39 int nGam=iGam.size();
40
41 iGoodtag.clear();
42 iGamtag.clear();
43
44 double mass_bcgg,delE_tag_temp;
45 int m_chargetag,m_chargepi1,m_chargepi2,m_chargek,m_chargepi3;
46 int ik1_temp,ipi1_temp,ipi2_temp,ipi3_temp;
47 HepLorentzVector pddd;
48 HepLorentzVector pddd_temp;
49
50 IDataProviderSvc* eventSvc = NULL;
51 Gaudi::svcLocator()->service("EventDataSvc", eventSvc);
53 SmartDataPtr<Event::EventHeader> eventHeader(eventSvc,"/Event/EventHeader");
54
55 int runNo=eventHeader->runNumber();
56 int rec=eventHeader->eventNumber();
57
58 double xecm=2*Ebeam;
59
60 k0kpimd=false;
61 double tagmode=0;
62
63
64 if((evtRecEvent->totalCharged() < 4)){ return; }
65
67
69 Gaudi::svcLocator()->service("SimplePIDSvc", simple_pid);
70
71 double deltaE_tem = 0.20;
72 int ncount1 = 0;
73
74 Hep3Vector xorigin(0,0,0);
75 HepSymMatrix xoriginEx(3,0);
77 Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc);
79 {
82 xorigin.setX(dbv[0]);
83 xorigin.setY(dbv[1]);
84 xorigin.setZ(dbv[2]);
85
86 xoriginEx[0][0] = vv[0] * vv[0];
87 xoriginEx[1][1] = vv[1] * vv[1];
88 xoriginEx[2][2] = vv[2] * vv[2];
89
90 }
91
92 double xv=xorigin.x();
93 double yv=xorigin.y();
94 double zv=xorigin.z();
95
97 HepPoint3D IP(xorigin[0],xorigin[1],xorigin[2]);
98
99 for(int i = 0; i < evtRecEvent->totalCharged(); i++) {
101
102 int ipi1= (*itTrk)->trackId();
103
104 if(!(*itTrk)->isMdcKalTrackValid()) continue;
107
108 m_chargepi1=mdcKalTrk1->
charge();
109 if(m_chargepi1 != 1) continue;
110
111
113 HepSymMatrix Ea1 = mdcKalTrk1->
getZError();
114
115 VFHelix helixip3_1(point0,a1,Ea1);
116 helixip3_1.pivot(IP);
117 HepVector vecipa1 = helixip3_1.a();
118
119 double dr1 = fabs(vecipa1[0]);
120 double dz1 = fabs(vecipa1[3]);
121 double costheta1 =
cos(mdcKalTrk1->
theta());
122
123 if ( dr1 >= 15.0) continue;
124 if ( dz1 >= 25.0) continue;
125 if ( fabs(costheta1) >= 0.93) continue;
126
128
129
130
131
132 for(int j = 0; j < evtRecEvent->totalCharged(); j++) {
134
135 int ipi2= (*itTrk)->trackId();
136 if(ipi1==ipi2) continue;
137
138 if(!(*itTrk)->isMdcKalTrackValid()) continue;
141
142 m_chargepi2=mdcKalTrk2->
charge();
143 if((m_chargepi2 + m_chargepi1) != 0) continue;
144
145
147 HepSymMatrix Ea2 = mdcKalTrk2->
getZError();
148 VFHelix helixip3_2(point0,a2,Ea2);
149 helixip3_2.pivot(IP);
150 HepVector vecipa2 = helixip3_2.a();
151
152 double dr2 = fabs(vecipa2[0]);
153 double dz2 = fabs(vecipa2[3]);
154 double costheta2 =
cos(mdcKalTrk2->
theta());
155 if ( dr2 >= 15.0) continue;
156 if ( dz2 >= 25.0) continue;
157 if ( fabs(costheta2) >= 0.93) continue;
158
160
161 HepVector pip_val = HepVector(7,0);
162 HepVector pim_val = HepVector(7,0);
163 pip_val = pip.w();
164 pim_val = pim.w();
165 HepLorentzVector ptrktagk0(pip_val[0]+pim_val[0],pip_val[1]+pim_val[1],pip_val[2]+pim_val[2],pip_val[3]+pim_val[3]);
166 double m_xmtagk0_tem = ptrktagk0.mag();
167 if(fabs(ptrktagk0.m()-0.498)>0.1) continue;
168
169 HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z());
170 HepSymMatrix Evx(3, 0);
171 double bx = 1E+6; Evx[0][0] = bx*bx;
172 double by = 1E+6; Evx[1][1] = by*by;
173 double bz = 1E+6; Evx[2][2] = bz*bz;
175
181 if(!(vtxfit0->
Fit(0)))
continue;
188
189
190
191 for(int k = 0; k < evtRecEvent->totalCharged(); k++) {
193
194 int ik1 = (*itTrk)->trackId();
195 if(ipi2==ik1 || ipi1==ik1) continue;
196
197 if(!(*itTrk)->isMdcKalTrackValid()) continue;
200
201 m_chargek = mdcKalTrk3->
charge();
202 if(
abs(m_chargek) != 1)
continue;
203
204
207 VFHelix helixip3_3(point0,a3,Ea3);
208 helixip3_3.pivot(IP);
209 HepVector vecipa3 = helixip3_3.a();
210
211 double dr3 = fabs(vecipa3[0]);
212 double dz3 = fabs(vecipa3[3]);
213 double costheta3 =
cos(mdcKalTrk3->
theta());
214 if ( dr3 >= 1.0) continue;
215 if ( dz3 >= 10.0) continue;
216 if ( fabs(costheta3) >= 0.93) continue;
217
218 if(PID_flag == 5) {
221 }
222
224
225
226
227
228 for(int l = 0; l < evtRecEvent->totalCharged(); l++) {
230
231 int ipi3= (*itTrk)->trackId();
232 if(ipi3==ik1 || ipi3==ipi2 || ipi3 ==ipi1) continue;
233
234 if(!(*itTrk)->isMdcKalTrackValid()) continue;
237
238 m_chargepi3 = mdcKalTrk4->
charge();
239 if((m_chargepi3 + m_chargek) != 0) continue;
240
241
243 HepSymMatrix Ea4 = mdcKalTrk4->
getZError();
244 VFHelix helixip3_4(point0,a4,Ea4);
245 helixip3_4.pivot(IP);
246 HepVector vecipa4 = helixip3_4.a();
247
248 double dr4 = fabs(vecipa4[0]);
249 double dz4 = fabs(vecipa4[3]);
250 double costheta4 =
cos(mdcKalTrk4->
theta());
251 if ( dr4 >= 1.0) continue;
252 if ( dz4 >= 10.0) continue;
253 if ( fabs(costheta4) >= 0.93) continue;
254
255 if(PID_flag == 5) {
258 }
259
261
267 if(!vtxfit_2->
Fit(0))
continue;
269
272
279 if(!vtxfit->
Fit())
continue;
280
281 if(vtxfit->
chisq() > 999.)
continue;
283
284 double m_massks1_tem = vtxfit->
p4par().m();
285 if(m_massks1_tem < 0.485 || m_massks1_tem > 0.515) continue;
286 HepLorentzVector p4kstag = vtxfit->
p4par();
288
289 HepVector ka_val = HepVector(7,0);
290 HepVector pi_val = HepVector(7,0);
291 HepVector ksp_val = HepVector(7,0);
292 HepVector ksm_val = HepVector(7,0);
293
298
299 HepLorentzVector P_KA(ka_val[0],ka_val[1],ka_val[2],ka_val[3]);
300 HepLorentzVector P_PI(pi_val[0],pi_val[1],pi_val[2],pi_val[3]);
301 HepLorentzVector P_KSP(ksp_val[0],ksp_val[1],ksp_val[2],ksp_val[3]);
302 HepLorentzVector P_KSM(ksm_val[0],ksm_val[1],ksm_val[2],ksm_val[3]);
303
304 P_KA.boost(-0.011,0,0);
305 P_PI.boost(-0.011,0,0);
306 P_KSP.boost(-0.011,0,0);
307 P_KSM.boost(-0.011,0,0);
308
309 p4kstag.boost(-0.011,0,0);
310
311 pddd = P_KA + P_PI + p4kstag;
312
313 double pk0kpi=pddd.rho();
314
315 double temp1 = (
ecms/2)*(
ecms/2)-pk0kpi*pk0kpi ;
316 if(temp1<0) temp1 =0;
317 double mass_bc_tem = sqrt(temp1);
318 if(mass_bc_tem < 1.82 || mass_bc_tem > 1.89) continue;
319
320 double delE_tag_tag =
ecms/2-pddd.e();
321
322 if(fabs(delE_tag_tag)<deltaE_tem) {
323 deltaE_tem = fabs(delE_tag_tag);
324 delE_tag_temp = delE_tag_tag;
325 mass_bcgg = mass_bc_tem;
326
327 pddd_temp = pddd;
328
329 ipi1_temp=ipi1;
330 ipi2_temp=ipi2;
331 ik1_temp =ik1;
332 ipi3_temp=ipi3;
333
334 ncount1 = 1;
335
336 }
337 }
338 }
339 }
340 }
341
342 if(ncount1 == 1){
343 tagmode=21;
344 if(m_chargetag<0) tagmode=-21;
345 tagmd=tagmode;
346 mass_bc = mass_bcgg;
347 delE_tag = delE_tag_temp;
348 cqtm = 0.0;
349
350 iGoodtag.push_back(ipi1_temp);
351 iGoodtag.push_back(ipi2_temp);
352 iGoodtag.push_back(ik1_temp);
353 iGoodtag.push_back(ipi3_temp);
354
355 iGamtag.push_back(9999);
356 iGamtag.push_back(9999);
357 iGamtag.push_back(9999);
358 iGamtag.push_back(9999);
359
360 ptag = pddd_temp;
361
362 k0kpimd=true;
363 }
364
365}
double cos(const BesAngle a)
double abs(const EvtComplex &c)
EvtRecTrackCol::iterator EvtRecTrackIterator
const double theta() const
static void setPidType(PidType pidType)
virtual double probKaon()=0
virtual void preparePID(EvtRecTrack *track)=0
virtual double probPion()=0
virtual bool isVertexValid()=0
virtual double * SigmaPrimaryVertex()=0
virtual double * PrimaryVertex()=0
const HepVector & getZHelix() const
const HepSymMatrix & getZError() const
HepSymMatrix & getZErrorK()
HepLorentzVector p4par() const
void setPrimaryVertex(const VertexParameter vpar)
double decayLength() const
static SecondVertexFit * instance()
void setVpar(const VertexParameter vpar)
void AddTrack(const int number, const double mass, const RecMdcTrack *trk)
WTrackParameter wtrk(int n) const
WTrackParameter wVirtualTrack(int n) const
void AddVertex(int number, VertexParameter vpar, std::vector< int > lis)
static VertexFit * instance()
VertexParameter vpar(int n) const
void BuildVirtualParticle(int number)
void setEvx(const HepSymMatrix &eVx)
void setVx(const HepPoint3D &vx)
_EXTERN_ std::string EvtRecEvent
1.9.6