//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
// default constructor
- fvTrack.ResizeTo(5);
- fmCovariance = new TMatrix(5,5);
+ fC00=fC10=fC11=fC20=fC21=fC22=fC30=fC31=fC32=fC33=fC40=fC41=fC42=fC43=fC44=0.;
flistCluster = new TObjArray;
fNumClustInTrack =0;
fChi2=-1;
AliITStrack::AliITStrack(const AliITStrack &cobj) {
//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
- fvTrack.ResizeTo(5);
- fmCovariance = new TMatrix(5,5);
ClusterInTrack = new TMatrix(6,9);
Int_t i;
for(i=0; i<6; i++) (*ClusterInTrack)(i,6)=(*ClusterInTrack)(i,7)=
fTPCtrack = cobj.fTPCtrack;
fNumClustInTrack = cobj.fNumClustInTrack;
fChi2= cobj.fChi2;
- fvTrack = cobj.fvTrack;
+ fX0=cobj.fX0; fX1=cobj.fX1; fX2=cobj.fX2; fX3=cobj.fX3; fX4=cobj.fX4;
rtrack=cobj.rtrack;
Dv=cobj.Dv;
Zv=cobj.Zv;
tgl2=cobj.tgl2;
dtgl=cobj.dtgl;
-
- *fmCovariance = *cobj.fmCovariance;
+ fC00=cobj.fC00; fC10=cobj.fC10; fC11=cobj.fC11; fC20=cobj.fC20; fC21=cobj.fC21;
+ fC22=cobj.fC22; fC30=cobj.fC30; fC31=cobj.fC31; fC32=cobj.fC32; fC33=cobj.fC33;
+ fC40=cobj.fC40; fC41=cobj.fC41; fC42=cobj.fC42; fC43=cobj.fC43; fC44=cobj.fC44;
*ClusterInTrack = *cobj.ClusterInTrack;
//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
fTPCtrack = &obj;
- fvTrack.ResizeTo(5);
fVertex.ResizeTo(3);
fErrorVertex.ResizeTo(3);
fVertex(2)=(Double_t)Vzg;
fLayer = 7;
- fmCovariance = new TMatrix(5,5);
+ //fmCovariance = new TMatrix(5,5);
ClusterInTrack = new TMatrix(6,9);
Int_t i;
}
+
AliITStrack::~AliITStrack() {
//destructor
-
- if(fmCovariance) delete fmCovariance;
+
if(flistCluster) delete flistCluster;
if(ClusterInTrack) delete ClusterInTrack;
}
+void AliITStrack::PutCElements(Double_t C00, Double_t C10, Double_t C11, Double_t C20, Double_t C21,
+Double_t C22, Double_t C30, Double_t C31, Double_t C32, Double_t C33, Double_t C40,
+Double_t C41, Double_t C42, Double_t C43, Double_t C44){
+
+ fC00=C00; fC10=C10; fC11=C11; fC20=C20; fC21=C21; fC22=C22; fC30=C30; fC31=C31; fC32=C32; fC33=C33;
+ fC40=C40; fC41=C41; fC42=C42; fC43=C43; fC44=C44;
+}
+
+void AliITStrack::GetCElements(Double_t &C00, Double_t &C10, Double_t &C11, Double_t &C20, Double_t &C21,
+Double_t &C22, Double_t &C30, Double_t &C31, Double_t &C32, Double_t &C33, Double_t &C40,
+Double_t &C41, Double_t &C42, Double_t &C43, Double_t &C44){
+ C00=fC00; C10=fC10; C11=fC11; C20=fC20; C21=fC21; C22=fC22; C30=fC30; C31=fC31; C32=fC32; C33=fC33;
+ C40=fC40; C41=fC41; C42=fC42; C43=fC43; C44=fC44;
+
+}
+
+void AliITStrack::GetXElements(Double_t &X0, Double_t &X1, Double_t &X2, Double_t &X3, Double_t &X4) {
+ X0=fX0; X1=fX1; X2=fX2; X3=fX3; X4=fX4;
+}
+
+void AliITStrack::PutXElements(Double_t X0, Double_t X1, Double_t X2, Double_t X3, Double_t X4){
+ fX0=X0; fX1=X1; fX2=X2; fX3=X3; fX4=X4;
+}
void AliITStrack::LmTPC() {
// The covariance matrix is also modified accordingly
//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
-
- TVector tpctrack(5);
+
Double_t Alpha = fTPCtrack->GetAlpha();
//printf("LmTPC: Alpha %f\n",Alpha);
- tpctrack(0) = fTPCtrack->GetY();
- tpctrack(1) = fTPCtrack->GetZ();
- tpctrack(2) = fTPCtrack->GetC();
- tpctrack(3) = fTPCtrack->GetEta();
- tpctrack(4) = fTPCtrack->GetTgl();
- //cout<< " tpctracks = "<<tpctrack(0)<<" "<<tpctrack(1)<<" "<<tpctrack(2)<<" "<<tpctrack(3)<<" "<<tpctrack(4)<<
- //"\n ";
+ Double_t YTPC = fTPCtrack->GetY();
+ Double_t ZTPC = fTPCtrack->GetZ();
+ Double_t CTPC = fTPCtrack->GetC();
+ Double_t EtaTPC = fTPCtrack->GetEta();
+ Double_t TglTPC = fTPCtrack->GetTgl();
+
Double_t xm, ym, zm;
Double_t sina = TMath::Sin(Alpha);
Double_t cosa = TMath::Cos(Alpha);
Double_t xl= fTPCtrack->GetX();
- xm = xl * cosa - tpctrack(0)*sina;
- ym = xl * sina + tpctrack(0)*cosa;
- zm = tpctrack(1);
+ xm = xl * cosa - YTPC*sina;
+ ym = xl * sina + YTPC*cosa;
+ zm = ZTPC;
//cout<<" xl e alpha = "<<xl<<" "<<Alpha<<"\n"; getchar();
Double_t x0m,y0m;
///////////////////////////////////// determine yo //////////////////////////////////////////////////
+
Double_t Vxl=fVertex(0)*cosa+fVertex(1)*sina;
Double_t Vyl= -fVertex(0)*sina+fVertex(1)*cosa;
Double_t Xo,Yo, signy;
- Double_t R = 1./tpctrack(2);
- Xo = tpctrack(3) / tpctrack(2);
+ Double_t R = 1./CTPC;
+ Xo = EtaTPC / CTPC;
xoTPC=Xo;
Double_t Yo1, Yo2, diffsq1, diffsq2;
- Yo1 = tpctrack(0) + TMath::Sqrt(R*R - (xl-Xo)*(xl-Xo));
- Yo2 = tpctrack(0) - TMath::Sqrt(R*R - (xl-Xo)*(xl-Xo));
+ Yo1 = YTPC + TMath::Sqrt(R*R - (xl-Xo)*(xl-Xo));
+ Yo2 = YTPC - TMath::Sqrt(R*R - (xl-Xo)*(xl-Xo));
diffsq1=TMath::Abs((Yo1-Vyl)*(Yo1-Vyl)+(Xo-Vxl)*(Xo-Vxl)-R*R);
diffsq2=TMath::Abs((Yo2-Vyl)*(Yo2- Vyl)+(Xo-Vxl)*(Xo-Vxl)-R*R);
if(diffsq1<diffsq2) {Yo=Yo1; signy=1.;} else {Yo=Yo2; signy=-1.;};
+
////////////////////////////////////////////////////////////////////////////////////////////////////
x0m = Xo * cosa - Yo * sina;
};
if(phi<0. || phi>(2*pigre)) {cout<<"attention error on phi in AliITStrack:LmTPC \n"; getchar();}
- fvTrack(0)= phi;
- fvTrack(1)=zm;
- fvTrack(3)=tpctrack(4);
- fvTrack(4)=tpctrack(2);
+ fX0=phi;
+ fX1=zm;
+ fX3=TglTPC;
+ fX4=CTPC;
Double_t dd=TMath::Sqrt((x0m-fVertex(0))*(x0m-fVertex(0))+(y0m-fVertex(1))*(y0m-fVertex(1)));
Double_t signdd;
if (R>0) signdd=1.; else signdd=-1.;
- fvTrack(2)=signdd*dd-R;
+ fX2=signdd*dd-R;
//cout<<" fvertex = "<<fVertex(0)<<" "<<fVertex(1)<<" "<<fVertex(2)<<"\n";
- //cout<<" fvTrack(2) ="<<fvTrack(2)<<"\n"; getchar();
-
- TMatrix localM(5,5);
+
Double_t cov[15];
fTPCtrack->GetCovariance(cov);
- localM(0,0)=cov[0];
- localM(1,1)=cov[2];
- localM(3,3)=cov[5];
- localM(2,2)=cov[9];
- localM(4,4)=cov[14];
- localM(1,0)=localM(0,1)=cov[1];
- localM(3,0)=localM(0,3)=cov[3];
- localM(3,1)=localM(1,3)=cov[4];
- localM(2,0)=localM(0,2)=cov[6];
- localM(2,1)=localM(1,2)=cov[7];
- localM(2,3)=localM(3,2)=cov[8];
- localM(4,0)=localM(0,4)=cov[10];
- localM(4,1)=localM(1,4)=cov[11];
- localM(4,3)=localM(3,4)=cov[12];
- localM(4,2)=localM(2,4)=cov[13];
-
- TMatrix F(5,5);
-
Double_t dfidy, dDdy, dDdC, dDdeta;
dfidy=(xm*cosa+ym*sina)/(rtrack*rtrack);
dDdy=signdd*((y0m-fVertex(1))*cosa-(x0m-fVertex(0))*sina)/dd;
- Double_t dyodr=signy*(R+(xl-Xo)*tpctrack(3))/TMath::Sqrt(R*R-(xl-Xo)*(xl-Xo));
- Double_t dyomdr=sina*tpctrack(3)+cosa*dyodr;
- Double_t dxomdr=cosa*tpctrack(3)-sina*dyodr;
+ Double_t dyodr=signy*(R+(xl-Xo)*EtaTPC)/TMath::Sqrt(R*R-(xl-Xo)*(xl-Xo));
+ Double_t dyomdr=sina*EtaTPC+cosa*dyodr;
+ Double_t dxomdr=cosa*EtaTPC-sina*dyodr;
Double_t ddddR=((x0m-fVertex(0))*dxomdr+(y0m-fVertex(1))*dyomdr)/dd;
dDdC=-R*R*(signdd*ddddR-1.);
Double_t dyoldxol=signy*(xl-Xo)/TMath::Sqrt(R*R-(xl-Xo)*(xl-Xo));
Double_t dxomdeta=R*(cosa-sina*dyoldxol);
Double_t dyomdeta=R*(sina+cosa*dyoldxol);
dDdeta=signdd*((x0m-fVertex(0))*dxomdeta+(y0m-fVertex(1))*dyomdeta)/dd;
- F(0,0)=dfidy;
- F(0,1)=F(0,2)=F(0,3)=F(0,4)=0.;
- F(1,1)=1.;
- F(1,0)=F(1,2)=F(1,3)=F(1,4)=0.;
- F(2,0)=dDdy;
- F(2,2)=dDdC;
- F(2,3)=dDdeta;
- F(2,1)=F(2,4)=0.;
- F(3,0)=F(3,1)=F(3,2)=F(3,3)=0.;
- F(3,4)=1.;
- F(4,0)=F(4,1)=F(4,3)=F(4,4)=0.;
- F(4,2)=1.;
-// cout<<" Matrice F \n";
-// F.Print(); getchar();
- TMatrix Ft(TMatrix::kTransposed,F);
- TMatrix temp(localM);
- temp*=Ft;
- TMatrix B(F);
- B*=temp; // B=F*localM*Ft
-// cout<<" Matrice C\n";
-// B.Print(); getchar();
- *fmCovariance = B;
+
+ Double_t F00=dfidy;
+ Double_t F20=dDdy;
+ Double_t F22=dDdC;
+ Double_t F23=dDdeta;
+
+ Double_t T00=cov[0]*F00;
+ Double_t T02=cov[0]*F20+cov[6]*F22+cov[3]*F23;
+ Double_t T20=cov[6]*F00;
+ Double_t T22=cov[6]*F20+cov[9]*F22+cov[8]*F23;
+
+ fC00=F00*T00;
+ fC10=cov[1]*F00;
+ fC11=cov[2];
+ fC20=F20*T00+F22*T20+F23*cov[3]*F00;
+ fC21=F20*cov[1]+F22*cov[7]+F23*cov[4];
+ fC22=F20*T02+F22*T22+F23*(cov[3]*F20+cov[8]*F22+cov[5]*F23);
+ fC30=cov[10]*F00;
+ fC31=cov[11];
+ fC32=cov[10]*F20+cov[13]*F22+cov[12]*F23;
+ fC33=cov[14];
+ fC40=T20;
+ fC41=cov[7];
+ fC42=T22;
+ fC43=cov[13];
+ fC44=cov[9];
+
+ //cout<<" C32 e C44 = "<<fC32<<" "<<fC44<<"\n"; getchar();
+
}
AliITStrack &AliITStrack::operator=(AliITStrack obj) {
//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
- delete fmCovariance;
delete flistCluster;
delete ClusterInTrack;
- fmCovariance = new TMatrix(5,5);
ClusterInTrack = new TMatrix(6,9);
flistCluster = new TObjArray;
flabel = obj.flabel;
- fTPCtrack = obj.fTPCtrack;
- fvTrack.ResizeTo(5);
+ fTPCtrack = obj.fTPCtrack;
fNumClustInTrack = obj.fNumClustInTrack;
fChi2= obj.fChi2;
fVertex=obj.fVertex;
fErrorVertex=obj.fErrorVertex;
- fvTrack = obj.fvTrack;
+ fX0=obj.fX0; fX1=obj.fX1; fX2=obj.fX2; fX3=obj.fX3; fX4=obj.fX4;
fLayer=obj.fLayer;
rtrack=obj.rtrack;
Dv=obj.Dv;
d2=obj.d2;
tgl2=obj.tgl2;
dtgl=obj.dtgl;
-
-
- *fmCovariance = *obj.fmCovariance;
+
+ fC00=obj.fC00; fC10=obj.fC10; fC11=obj.fC11; fC20=obj.fC20; fC21=obj.fC21;
+ fC22=obj.fC22; fC30=obj.fC30; fC31=obj.fC31; fC32=obj.fC32; fC33=obj.fC33;
+ fC40=obj.fC40; fC41=obj.fC41; fC42=obj.fC42; fC43=obj.fC43; fC44=obj.fC44;
+
+
*ClusterInTrack = *obj.ClusterInTrack;
Int_t i;
for(i=0; i<obj.flistCluster->GetSize(); i++) flistCluster->AddLast(obj.flistCluster->At(i));
for(i=0; i<18; i++) {
for(j=0; j<18; j++) {
- if(VecTotLabref(i) == 0.) VecTotLabref(i)=-3.;
+ // if(VecTotLabref(i) == 0.) VecTotLabref(i)=-3.; //commentato il 5-3-2001
if( (VecTotLabref(i)>=0.) && (VecTotLabref(i)==VecTotLabref(j)) ) vecfreq[i]++;
}
}
//
Double_t Ak=argA(rk), Akm1=argA(rkm1);
Double_t ak=arga(rk), akm1=arga(rkm1);
- fvTrack(0)+=TMath::ASin(Ak)-TMath::ASin(Akm1);
+ fX0+=TMath::ASin(Ak)-TMath::ASin(Akm1);
- if(fvTrack(0)>duepi) fvTrack(0)-=duepi;
- if(fvTrack(0)<0.) fvTrack(0)+=duepi;
+ if(fX0>duepi) fX0-=duepi;
+ if(fX0<0.) fX0+=duepi;
- Double_t tgl=fvTrack(3);
- Double_t C=fvTrack(4);
- Double_t D=fvTrack(2);
+ Double_t tgl=fX3;
+ Double_t C=fX4;
+ Double_t D=fX2;
Double_t Cy=C/2;
- fvTrack(1)+=tgl/Cy*(TMath::ASin(ak)-TMath::ASin(akm1));
+ fX1+=tgl/Cy*(TMath::ASin(ak)-TMath::ASin(akm1));
rtrack=rk;
-//cout<<"fvTrack(0) fvTrack(1) e rtrack dentro Propagation = "<<fvTrack(0)<<" "<<fvTrack(1)<<" "<<rtrack<<"\n";
-//getchar();
+
Double_t Bk=argB(rk), Bkm1=argB(rkm1);
Double_t Ck=argC(rk), Ckm1=argC(rkm1);
- TMatrix F(5,5);
- F(0,2)=Ck/TMath::Sqrt(1.-Ak*Ak) - Ckm1/TMath::Sqrt(1.-Akm1*Akm1);
- F(0,4)=Bk/TMath::Sqrt(1.-Ak*Ak) - Bkm1/TMath::Sqrt(1.-Akm1*Akm1);
- F(1,2)=tgl*D*(1./rk - 1./rkm1);
- F(1,3) = rk - rkm1;
- F(0,0)=F(1,1)=F(2,2)=F(3,3)=F(4,4)=1.;
- TMatrix Ft(TMatrix::kTransposed,F);
- TMatrix temp(*fmCovariance);
-//cout<<" C Matrix prima propagation =\n";
-//temp.Print(); getchar();
- temp*=Ft;
- TMatrix B(F);
- B*=temp;
-//cout<<" C Matrix dopo propagation =\n"; // B=F*C*Ft
-//B.Print(); getchar();
- *fmCovariance = B;
-
-}
-/*
-void AliITStrack::AddEL(Double_t signdE, Bool_t flagtot, Double_t mass) {
-//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
-// add energy loss
- TVector s(6);
- s(0)=0.0026+0.00283; s(1)=0.018; s(2)=0.0094; s(3)=0.0095; s(4)=0.0091; s(5)=0.0087;
-//0.00277 is added in the first layer to take into account the energy loss in the beam pipe
-
- Double_t cl=1.+fvTrack(3)*fvTrack(3); // cl=1/(cosl)**2 = 1 + (tgl)**2
- Double_t sqcl=TMath::Sqrt(cl);
- Double_t pt=GetPt();
-
- Double_t p2=pt*pt*cl;
- Double_t E=TMath::Sqrt(p2+mass*mass);
- Double_t beta2=p2/(p2+mass*mass);
+ Double_t F02=Ck/TMath::Sqrt(1.-Ak*Ak) - Ckm1/TMath::Sqrt(1.-Akm1*Akm1);
+ Double_t F04=Bk/TMath::Sqrt(1.-Ak*Ak) - Bkm1/TMath::Sqrt(1.-Akm1*Akm1);
+ Double_t F12=tgl*D*(1./rk - 1./rkm1);
+ Double_t F13=rk - rkm1;
+
+
+ Double_t C00=fC00;
+ Double_t C10=fC10;
+ Double_t C11=fC11;
+ Double_t C20=fC20;
+ Double_t C21=fC21;
+ Double_t C22=fC22;
+ Double_t C30=fC30;
+ Double_t C31=fC31; // provare se si puo' fare a meno
+ Double_t C32=fC32;
+ Double_t C33=fC33;
+ Double_t C40=fC40;
+ Double_t C41=fC41;
+ Double_t C42=fC42;
+ Double_t C43=fC43;
+ Double_t C44=fC44;
+
+ Double_t R10=C10+C21*F02+C41*F04;
+ Double_t R20=C20+C22*F02+C42*F04;
+ Double_t R30=C30+C32*F02+C43*F04;
+ Double_t R40=C40+C42*F02+C44*F04;
+ Double_t R21=C21+C22*F12+C32*F13;
+ Double_t R31=C31+C32*F12+C33*F13;
+ Double_t R41=C41+C42*F12+fC43*F13;
+
+ fC00=C00+C20*F02+C40*F04+F02*R20+F04*R40;
+ fC10=R10+F12*R20+F13*R30;
+ fC11=C11+C21*F12+C31*F13+F12*R21+F13*R31;
+ fC20=R20;
+ fC21=R21;
+ fC30=R30;
+ fC31=R31;
+ fC40=R40;
+ fC41=R41;
- Double_t dE;
- if(flagtot) {
- Double_t stot=s(0)+s(1)+s(2)+s(3)+s(4)+s(5);
- dE=0.153/beta2*(log(5940*beta2/(1-beta2)) - beta2)*stot*21.82*sqcl;
- } else {
- dE=0.153/beta2*(log(5940*beta2/(1-beta2)) - beta2)*s(fLayer-1)*21.82*sqcl;
- }
- dE=signdE*dE/1000.;
-
- E+=dE;
- Double_t p=TMath::Sqrt(E*E-mass*mass);
- Double_t sign=1.;
- if((fvTrack)(4) < 0.) sign=-1.;
- pt=sign*p/sqcl;
- Double_t CC=(0.3*0.2)/(pt*100.);
- fvTrack(4)=CC;
-
}
-*/
-void AliITStrack::AddEL(AliITSRad *rl, Double_t signdE, Bool_t flagtot, Double_t mass) {
+
+void AliITStrack::AddEL(AliITSRad *rl, Double_t signdE, Bool_t flagtot, Double_t mass=0.1396) {
//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
// add energy loss
//for(int k=0; k<6; k++) cout<<s(k)<<" "; cout<<"\n";
- //Double_t Cold=fvTrack(4);
- Double_t phi=fvTrack(0);
- Double_t tgl=fvTrack(3);
+ Double_t phi=fX0;
+ Double_t tgl=fX3;
Double_t theta=((TMath::Pi())/2.)-TMath::ATan(tgl);
//phi*=180./TMath::Pi();
//theta*=180./TMath::Pi();
//if(theta<45 || theta>135) {cout<<" theta = "<<theta<<"\n"; getchar();}
//cout<<" dentro AddEl: phi, theta = "<<phi<<" "<<theta<<"\n"; getchar();
- Double_t cl=1.+fvTrack(3)*fvTrack(3); // cl=1/(cosl)**2 = 1 + (tgl)**2
+ Double_t cl=1.+fX3*fX3; // cl=1/(cosl)**2 = 1 + (tgl)**2
Double_t sqcl=TMath::Sqrt(cl);
Double_t pt=GetPt();
E+=dE;
Double_t p=TMath::Sqrt(E*E-mass*mass);
Double_t sign=1.;
- if((fvTrack)(4) < 0.) sign=-1.;
+ if(fX4 < 0.) sign=-1.;
pt=sign*p/sqcl;
- Double_t CC=(0.3*0.2)/(pt*100.);
- fvTrack(4)=CC;
+ Double_t CC=(0.299792458*0.2)/(pt*100.);
+ fX4=CC;
-
- //Double_t DelCC=CC-Cold;
- //cout<<" CC , DelCC, covCC = "<<CC<<" "<<DelCC<<" "<<(*fmCovariance)(4,4)<<"\n"; getchar();
- //(*fmCovariance)(4,4)=(*fmCovariance)(4,4)+DelCC*DelCC;
-
}
+
void AliITStrack::Correct(Double_t rk) {
//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
// correct track to take into account real geometry detector
Double_t Ak=argA(rk), Akm1=argA(rkm1);
Double_t ak=arga(rk), akm1=arga(rkm1);
- fvTrack(0)+=TMath::ASin(Ak)-TMath::ASin(Akm1);
- if(fvTrack(0)>duepi) fvTrack(0)-=duepi;
- if(fvTrack(0)<0.) fvTrack(0)+=duepi;
+ fX0+=TMath::ASin(Ak)-TMath::ASin(Akm1);
+ if(fX0>duepi) fX0-=duepi;
+ if(fX0<0.) fX0+=duepi;
- Double_t tgl=fvTrack(3);
- Double_t C=fvTrack(4);
+ Double_t tgl=fX3;
+ Double_t C=fX4;
Double_t Cy=C/2;
- fvTrack(1)+=tgl/Cy*(TMath::ASin(ak)-TMath::ASin(akm1));
+ fX1+=tgl/Cy*(TMath::ASin(ak)-TMath::ASin(akm1));
rtrack=rk;
}
-/*
-void AliITStrack::AddMS() {
-
-////////// Modification of the covariance matrix to take into account multiple scattering ///////////
-//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
-
- TVector s(6);
- s(0)=0.0026+0.00283; s(1)=0.018; s(2)=0.0094; s(3)=0.0095; s(4)=0.0091; s(5)=0.0087;
-//0.00277 is added in the first layer to take into account the energy loss in the beam pipe
- Double_t mass=0.1396;
- Int_t layer=(Int_t)GetLayer();
-
- Double_t tgl=fvTrack(3);
- Double_t cosl=TMath::Cos(TMath::ATan(tgl));
- Double_t D=fvTrack(2);
- Double_t C=fvTrack(4);
- Double_t Cy=C/2.;
- Double_t Q20=1./(cosl*cosl);
- Double_t Q30=C*tgl;
-
- Double_t Q40=Cy*(rtrack*rtrack-D*D)/(1.+ 2.*Cy*D);
- Double_t dd=D+Cy*D*D-Cy*rtrack*rtrack;
- Double_t Q41=-1./cosl*TMath::Sqrt(rtrack*rtrack - dd*dd)/(1.+ 2.*Cy*D);
-
-
- TMatrix J(5,2);
- J(0,0)=0.; J(0,1)=0.;
- J(1,0)=0.; J(1,1)=0.;
- J(2,0)=Q40;
- J(2,1)=Q41;
- J(3,0)=Q20; J(3,1)=0.;
- J(4,0)=Q30; J(4,1)=0.;
-
- Double_t p2=(GetPt()*GetPt())/(cosl*cosl);
- Double_t beta2=p2/(p2+mass*mass);
- Double_t theta2=14.1*14.1/(beta2*p2*1.e6)*(s(layer-1)/cosl);
-
- TMatrix Jt(TMatrix::kTransposed,J);
- TMatrix Q(J,TMatrix::kMult,Jt);
- Q*=theta2;
-
- (*fmCovariance)+=Q;
-
-}
-*/
void AliITStrack::AddMS(AliITSRad *rl) {
////////// Modification of the covariance matrix to take into account multiple scattering ///////////
//0.00277 is added in the first layer to take into account the energy loss in the beam pipe
- Double_t phi=fvTrack(0);
- Double_t tgl=fvTrack(3);
+ Double_t phi=fX0;
+ Double_t tgl=fX3;
Double_t theta=((TMath::Pi())/2.)-TMath::ATan(tgl);
- //phi*=180./TMath::Pi();
- //theta*=180./TMath::Pi();
- //Double_t rad90=(TMath::Pi())/2.;
- Double_t rad40=(TMath::Pi())*40./180.;
+ Double_t rad40=(TMath::Pi())*40./180.; // rivedere
Double_t rad100=(TMath::Pi())*100/180;
Double_t rad360=(TMath::Pi())*2.;
Int_t imax=rl->Getimax();
Int_t jmax=rl->Getjmax();
Int_t i=(Int_t) ( (theta-rad40)/rad100*imax);
Int_t j=(Int_t) ( phi/rad360*jmax);
- //Int_t i=(Int_t)( ((theta-((TMath::Pi())/4.))/((TMath::Pi())/2.))*imax );
- //Int_t j=(Int_t)( (phi/((TMath::Pi())*2.))*jmax );
if(i<0) i=0;
if(i>=imax) i=imax-1;
Double_t mass=0.1396;
Int_t layer=(Int_t)GetLayer();
- //Double_t tgl=fvTrack(3);
Double_t cosl=TMath::Cos(TMath::ATan(tgl));
- Double_t D=fvTrack(2);
- Double_t C=fvTrack(4);
+ Double_t D=fX2;
+ Double_t C=fX4;
Double_t Cy=C/2.;
Double_t Q20=1./(cosl*cosl);
Double_t Q30=C*tgl;
Double_t Q40=Cy*(rtrack*rtrack-D*D)/(1.+ 2.*Cy*D);
Double_t dd=D+Cy*D*D-Cy*rtrack*rtrack;
- Double_t Q41=-1./cosl*TMath::Sqrt(rtrack*rtrack - dd*dd)/(1.+ 2.*Cy*D);
-
- /*
- Double_t xk=rtrack*TMath::Cos(fvTrack(0));
- Double_t yk=rtrack*TMath::Sin(fvTrack(0));
- Double_t rvertex=TMath::Sqrt((xk-fVertex(0))*(xk-fVertex(0)) + (yk-fVertex(1))*(yk-fVertex(1)));
- Double_t Q40=Cy*(rvertex*rvertex-D*D)/(1.+ 2.*Cy*D);
- Double_t dd=D+Cy*D*D-Cy*rvertex*rvertex;
- Double_t Q41=-1./cosl*TMath::Sqrt(rvertex*rvertex - dd*dd)/(1.+ 2.*Cy*D);
- */
-
- TMatrix J(5,2);
- J(0,0)=0.; J(0,1)=0.;
- J(1,0)=0.; J(1,1)=0.;
- J(2,0)=Q40;
- J(2,1)=Q41;
- J(3,0)=Q20; J(3,1)=0.;
- J(4,0)=Q30; J(4,1)=0.;
-
+ Double_t dprova=rtrack*rtrack - dd*dd;
+ Double_t Q41=0.;
+ if(dprova>0.) Q41=-1./cosl*TMath::Sqrt(dprova)/(1.+ 2.*Cy*D);
+
Double_t p2=(GetPt()*GetPt())/(cosl*cosl);
Double_t beta2=p2/(p2+mass*mass);
Double_t theta2=14.1*14.1/(beta2*p2*1.e6)*(s(layer-1)/cosl);
-
- TMatrix Jt(TMatrix::kTransposed,J);
- TMatrix Q(J,TMatrix::kMult,Jt);
- Q*=theta2;
-
- (*fmCovariance)+=Q;
-
+
+ fC22+=theta2*(Q40*Q40+Q41*Q41);
+ fC32+=theta2*Q20*Q40;
+ fC33+=theta2*Q20*Q20;
+ fC42+=theta2*Q30*Q40;
+ fC43+=theta2*Q30*Q20;
+ fC44+=theta2*Q30*Q30;
+
}
void AliITStrack::PrimaryTrack(AliITSRad *rl) {
//Origin A. Badala' and G.S. Pappalardo: e-mail Angela.Badala@ct.infn.it, Giuseppe.S.Pappalardo@ct.infn.it
Rlayer[0]=4.; Rlayer[1]=7.; Rlayer[2]=14.9; Rlayer[3]=23.8;
Rlayer[4]=39.1; Rlayer[5]=43.6;
- Double_t Cy=fvTrack(4)/2.;
- Double_t tgl=(fvTrack(1)-Zv)*Cy/TMath::ASin(Cy*rtrack);
+ Double_t Cy=fX4/2.;
+ Double_t tgl=(fX1-Zv)*Cy/TMath::ASin(Cy*rtrack);
Double_t rtrack=1.;
- fvTrack(0)=0.;
- fvTrack(1)=rtrack*tgl;
- fvTrack(2)=Dv;
- fvTrack(3)=tgl;
-
- TMatrix newC(5,5);
- newC(4,4)=(*fmCovariance)(4,4);
- (*fmCovariance)=newC;
+ fX0=0.;
+ fX1=rtrack*tgl;
+ fX2=Dv;
+ fX3=tgl;
+
+ fC00=fC10=fC11=fC20=fC21=fC22=fC30=fC31=fC32=fC33=fC40=fC41=fC42=fC43=0.;
+
AddEL(rl,1.,1);
fLayer=0;
Int_t i;
for (i=0; i<6; i++) {
Propagation(Rlayer[i]);
fLayer++;
- d2(i)=(*fmCovariance)(2,2);
- tgl2(i)=(*fmCovariance)(3,3);
- dtgl(i)=(*fmCovariance)(2,3);
+ d2(i)=fC22;
+ tgl2(i)=fC33;
+ dtgl(i)=fC32;
AddMS(rl);
AddEL(rl,-1,0);
}
Int_t AliITStrack::DoNotCross(Double_t rk) const{
- Double_t C=fvTrack(4);
- Double_t D=fvTrack(2);
+ Double_t C=fX4;
+ Double_t D=fX2;
Double_t Cy=C/2.;
return (TMath::Abs((Cy*rk+(1.+Cy*D)*D/rk)/(1.+2.*Cy*D))>=1.)?1:0;
}
Double_t AliITStrack::argA(Double_t rk) const {
- Double_t C=fvTrack(4);
- Double_t D=fvTrack(2);
+ Double_t C=fX4;
+ Double_t D=fX2;
Double_t Cy=C/2.;
Double_t arg=(Cy*rk + (1 + Cy*D)*D/rk)/(1.+ 2.*Cy*D);
if (TMath::Abs(arg) < 1.) return arg;
}
Double_t AliITStrack::arga(Double_t rk) const {
- Double_t C=fvTrack(4);
- Double_t D=fvTrack(2);
+ Double_t C=fX4;
+ Double_t D=fX2;
Double_t Cy=C/2.;
Double_t arg=(rk*rk - D*D)/(1.+ 2.*Cy*D);
if (arg<0.) {/*cout<<"class AliITSTrack: arga out of range !\n";*/ arg=0.;}
}
Double_t AliITStrack::argB(Double_t rk) const {
- Double_t C=fvTrack(4);
- Double_t D=fvTrack(2);
+ Double_t C=fX4;
+ Double_t D=fX2;
Double_t Cy=C/2.;
return (rk*rk - D*D)/(rk*(1.+ 2.*Cy*D)*(1.+ 2.*Cy*D));
}
Double_t AliITStrack::argC(Double_t rk) const {
- Double_t C=fvTrack(4);
- Double_t D=fvTrack(2);
+ Double_t C=fX4;
+ Double_t D=fX2;
Double_t Cy=C/2.;
return (1./rk - 2.*Cy*argA(rk)/(1.+ 2.*Cy*D));
}
-/*
+
Double_t AliITStrack::PhiDef(Double_t x, Double_t y){
Double_t pigre= TMath::Pi();
- Double_t phi;
+ Double_t phi=10000.;
if(y == 0. || x == 0.) {
if(y == 0. && x == 0.) {
cout << " Error in AliITStracking::PhiDef x=0 and y=0 \n"; getchar();
}
return phi;
}
-*/
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff