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_chargepi3,m_chargepi4;
46 int ik1_temp,ipi1_temp,ipi2_temp,ipi3_temp,ipi4_temp, iGam1_temp, iGam2_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 k0pipipi0md=false;
61 double tagmode=0;
62
63 if((evtRecEvent->totalCharged() < 4||nGam<2)){ return; }
64
66
68 Gaudi::svcLocator()->service("SimplePIDSvc", simple_pid);
69
70 double deltaE_tem = 0.20;
71 int ncount1 = 0;
72
73 Hep3Vector xorigin(0,0,0);
74 HepSymMatrix xoriginEx(3,0);
76 Gaudi::svcLocator()->service("VertexDbSvc", vtxsvc);
78 {
81 xorigin.setX(dbv[0]);
82 xorigin.setY(dbv[1]);
83 xorigin.setZ(dbv[2]);
84
85 xoriginEx[0][0] = vv[0] * vv[0];
86 xoriginEx[1][1] = vv[1] * vv[1];
87 xoriginEx[2][2] = vv[2] * vv[2];
88
89 }
90
91 double xv=xorigin.x();
92 double yv=xorigin.y();
93 double zv=xorigin.z();
94
96 HepPoint3D IP(xorigin[0],xorigin[1],xorigin[2]);
97
98
99 HepLorentzVector p2gfit;
100 HepLorentzVector p2gg;
101
102 for(int i = 0; i < evtRecEvent->totalCharged(); i++) {
104
105 int ipi1= (*itTrk)->trackId();
106
107 if(!(*itTrk)->isMdcKalTrackValid()) continue;
110
111 m_chargepi1=mdcKalTrk1->
charge();
112 if(m_chargepi1 != 1) continue;
113
114
116 HepSymMatrix Ea1 = mdcKalTrk1->
getZError();
117
118 VFHelix helixip3_1(point0,a1,Ea1);
119 helixip3_1.pivot(IP);
120 HepVector vecipa1 = helixip3_1.a();
121
122 double dr1 = fabs(vecipa1[0]);
123 double dz1 = fabs(vecipa1[3]);
124 double costheta1 =
cos(mdcKalTrk1->
theta());
125
126 if ( dr1 >= 15.0) continue;
127 if ( dz1 >= 25.0) continue;
128 if ( fabs(costheta1) >= 0.93) continue;
129
131
132
133
134
135
136 for(int j = 0; j < evtRecEvent->totalCharged();j++) {
138
139 int ipi2= (*itTrk)->trackId();
140 if(ipi1==ipi2) continue;
141
142 if(!(*itTrk)->isMdcKalTrackValid()) continue;
145
146 m_chargepi2=mdcKalTrk2->
charge();
147 if((m_chargepi2 + m_chargepi1) != 0) continue;
148
149
151 HepSymMatrix Ea2 = mdcKalTrk2->
getZError();
152 VFHelix helixip3_2(point0,a2,Ea2);
153 helixip3_2.pivot(IP);
154 HepVector vecipa2 = helixip3_2.a();
155
156 double dr2 = fabs(vecipa2[0]);
157 double dz2 = fabs(vecipa2[3]);
158 double costheta2 =
cos(mdcKalTrk2->
theta());
159 if ( dr2 >= 15.0) continue;
160 if ( dz2 >= 25.0) continue;
161 if ( fabs(costheta2) >= 0.93) continue;
162
164
165
166 HepVector pip1_val = HepVector(7,0);
167 HepVector pim1_val = HepVector(7,0);
168 pip1_val = pip1.w();
169 pim1_val = pim1.w();
170 HepLorentzVector ptrktagk0(pip1_val[0]+pim1_val[0],pip1_val[1]+pim1_val[1],pip1_val[2]+pim1_val[2],pip1_val[3]+pim1_val[3]);
171 double m_xmtagk0_tem = ptrktagk0.mag();
172 if(fabs(ptrktagk0.m()-0.498)>0.1) continue;
173
174 HepPoint3D vx(xorigin.x(), xorigin.y(), xorigin.z());
175 HepSymMatrix Evx(3, 0);
176 double bx = 1E+6; Evx[0][0] = bx*bx;
177 double by = 1E+6; Evx[1][1] = by*by;
178 double bz = 1E+6; Evx[2][2] = bz*bz;
180
181
187 if(!(vtxfit0->
Fit(0)))
continue;
194
195
196
197
198 for(int k = 0; k < evtRecEvent->totalCharged(); k++) {
200
201 int ipi3= (*itTrk)->trackId();
202 if(ipi2==ipi3 || ipi1==ipi3) continue;
203
204 if(!(*itTrk)->isMdcKalTrackValid()) continue;
207
208 m_chargepi3=mdcKalTrk3->
charge();
209 if(
abs(m_chargepi3) != 1)
continue;
210
211
213 HepSymMatrix Ea3 = mdcKalTrk3->
getZError();
214 VFHelix helixip3_3(point0,a3,Ea3);
215 helixip3_3.pivot(IP);
216 HepVector vecipa3 = helixip3_3.a();
217
218 double dr3 = fabs(vecipa3[0]);
219 double dz3 = fabs(vecipa3[3]);
220 double costheta3 =
cos(mdcKalTrk3->
theta());
221 if ( dr3 >= 1.0) continue;
222 if ( dz3 >= 10.0) continue;
223 if ( fabs(costheta3) >= 0.93) continue;
224
225 if(PID_flag == 5) {
228 }
229
231
232
233
234
235 for(int l = 0; l < evtRecEvent->totalCharged(); l++) {
237
238 int ipi4= (*itTrk)->trackId();
239 if(ipi4==ipi3 || ipi4==ipi2 || ipi4 ==ipi1) continue;
240
241 if(!(*itTrk)->isMdcKalTrackValid()) continue;
244
245 m_chargepi4=mdcKalTrk4->
charge();
246 if((m_chargepi4 + m_chargepi3) != 0) continue;
247
248
250 HepSymMatrix Ea4 = mdcKalTrk4->
getZError();
251 VFHelix helixip3_4(point0,a4,Ea4);
252 helixip3_4.pivot(IP);
253 HepVector vecipa4 = helixip3_4.a();
254
255 double dr4 = fabs(vecipa4[0]);
256 double dz4 = fabs(vecipa4[3]);
257 double costheta4 =
cos(mdcKalTrk4->
theta());
258 if ( dr4 >= 1.0) continue;
259 if ( dz4 >= 10.0) continue;
260 if ( fabs(costheta4) >= 0.93) continue;
261
262 if(PID_flag == 5) {
265 }
266
268
269 for(int m = 0; m < nGam-1; m++) {
270 if(iGam[m]==-1) continue;
271 RecEmcShower *g1Trk = (*(evtRecTrkCol->begin()+iGam[m]))->emcShower();
272 double eraw1 = g1Trk->
energy();
274 double the1 = g1Trk->
theta();
275 HepLorentzVector ptrkg1,ptrkg10,ptrkg12;
278 ptrkg1.setPz(eraw1*
cos(the1));
279 ptrkg1.setE(eraw1);
280 ptrkg10 = ptrkg1;
281 ptrkg12 = ptrkg1.boost(-0.011,0,0);
282
283 for(
int n = m+1;
n < nGam;
n++) {
284 if(iGam[
n]==-1)
continue;
285 RecEmcShower *g2Trk = (*(evtRecTrkCol->begin()+iGam[
n]))->emcShower();
286 double eraw2 = g2Trk->
energy();
288 double the2 = g2Trk->
theta();
289 HepLorentzVector ptrkg2,ptrkg20,ptrkg22;
292 ptrkg2.setPz(eraw2*
cos(the2));
293 ptrkg2.setE(eraw2);
294 ptrkg20 = ptrkg2;
295 ptrkg22 = ptrkg2.boost(-0.011,0,0);
296
297
298 HepLorentzVector ptrkpi0;
299 ptrkpi0 = ptrkg12+ptrkg22;
300 double m_xmpi0_tem = ptrkpi0.m();
301 if(m_xmpi0_tem>0.150||m_xmpi0_tem<0.115) continue;
302
303 bool IsEndcap1 = false; bool IsEndcap2 = false;
304 if(fabs(
cos(the1)) > 0.86 && fabs(
cos(the1)) < 0.92) IsEndcap1 =
true;
305 if(fabs(
cos(the2)) > 0.86 && fabs(
cos(the2)) < 0.92) IsEndcap2 =
true;
306 if(IsEndcap1 && IsEndcap2) continue;
307
314
317
318 double pi0_chisq = kmfit->
chisq(0);
319 if ( pi0_chisq >= 2500) continue;
320 HepLorentzVector p2gfit = kmfit->
pfit(0) + kmfit->
pfit(1);
321 p2gfit.boost(-0.011,0,0);
322
323
329 if(!vtxfit_2->
Fit(0))
continue;
331
334
341 if(!vtxfit->
Fit())
continue;
342
343 if(vtxfit->
chisq() >999.)
continue;
345
346 double m_massks1_tem = vtxfit->
p4par().m();
347 if(m_massks1_tem < 0.485 || m_massks1_tem > 0.515) continue;
348 HepLorentzVector p4kstag = vtxfit->
p4par();
350
351 HepVector pip2_val = HepVector(7,0);
352 HepVector pim2_val = HepVector(7,0);
353 HepVector ksp_val = HepVector(7,0);
354 HepVector ksm_val = HepVector(7,0);
355
356 pip2_val = wpip2.
w();
357 pim2_val = wpim2.
w();
360
361 HepLorentzVector P_PIP2(pip2_val[0],pip2_val[1],pip2_val[2],pip2_val[3]);
362 HepLorentzVector P_PIM2(pim2_val[0],pim2_val[1],pim2_val[2],pim2_val[3]);
363 HepLorentzVector P_KSP(ksp_val[0],ksp_val[1],ksp_val[2],ksp_val[3]);
364 HepLorentzVector P_KSM(ksm_val[0],ksm_val[1],ksm_val[2],ksm_val[3]);
365
366 p4kstag.boost(-0.011,0,0);
367 P_PIP2.boost(-0.011,0,0);
368 P_PIM2.boost(-0.011,0,0);
369 P_KSP.boost(-0.011,0,0);
370 P_KSM.boost(-0.011,0,0);
371
372
373 pddd = P_PIP2 + P_PIM2 + p4kstag + p2gfit;
374
375 double pk0pipipi0 = pddd.rho();
376
377 double temp1 = (
ecms/2)*(
ecms/2)-pk0pipipi0*pk0pipipi0 ;
378 if(temp1<0) temp1 =0;
379 double mass_bc_tem = sqrt(temp1);
380 if(mass_bc_tem <1.82 || mass_bc_tem > 1.89) continue;
381
382 double delE_tag_tag =
ecms/2-pddd.e();
383
384 if(fabs(delE_tag_tag)<deltaE_tem) {
385 deltaE_tem = fabs(delE_tag_tag);
386 delE_tag_temp = delE_tag_tag;
387 mass_bcgg = mass_bc_tem;
388
389 pddd_temp = pddd;
390
391 ipi1_temp=ipi1;
392 ipi2_temp=ipi2;
393 ipi3_temp=ipi3;
394 ipi4_temp=ipi4;
395 iGam1_temp = iGam[m];
396 iGam2_temp = iGam[
n];
397
398 ncount1 = 1;
399
400 }
401 }
402 }
403 }
404 }
405 }
406 }
407
408
409 if(ncount1 == 1){
410 tagmode=17;
411 if(m_chargetag<0) tagmode=-17;
412 tagmd=tagmode;
413 mass_bc = mass_bcgg;
414 delE_tag = delE_tag_temp;
415 cqtm = 0;
416
417 iGoodtag.push_back(ipi1_temp);
418 iGoodtag.push_back(ipi2_temp);
419 iGoodtag.push_back(ipi3_temp);
420 iGoodtag.push_back(ipi4_temp);
421
422 iGamtag.push_back(iGam1_temp);
423 iGamtag.push_back(iGam2_temp);
424 iGamtag.push_back(9999);
425 iGamtag.push_back(9999);
426
427 ptag = pddd_temp;
428
429 k0pipipi0md = true;
430 }
431
432}
double sin(const BesAngle a)
double cos(const BesAngle a)
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
void setChisqCut(const double chicut=200, const double chiter=0.05)
HepLorentzVector pfit(int n) const
void BuildVirtualParticle(int number)
void AddResonance(int number, double mres, std::vector< int > tlis)
static KalmanKinematicFit * instance()
const HepVector & getZHelix() const
const HepSymMatrix & getZError() const
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