#include "AliTPCCalROC.h"
#include "AliTPCcalibDB.h"
#include "AliTPCParam.h"
-
+#include "AliMathBase.h"
+#include "AliTPCTransform.h"
+#include "AliSplineFit.h"
+#include "AliCDBManager.h"
+#include "AliTPCcalibDButil.h"
ClassImp(AliTPCseed)
//-----------------------------------------------------------------
Double_t p[2]={c->GetY(), c->GetZ()};
Double_t cov[3]={fErrorY2, 0., fErrorZ2};
+
+ Float_t dx = ((AliTPCclusterMI*)c)->GetX()-GetX();
+ if (TMath::Abs(dx)>0){
+ Float_t ty = TMath::Tan(TMath::ASin(GetSnp()));
+ Float_t dy = dx*ty;
+ Float_t dz = dx*TMath::Sqrt(1.+ty*ty)*GetTgl();
+ p[0] = c->GetY()-dy;
+ p[1] = c->GetZ()-dz;
+ }
return AliExternalTrackParam::GetPredictedChi2(p,cov);
}
//_____________________________________________________________________________
-Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t onlyused) {
+Float_t AliTPCseed::CookdEdx(Double_t low, Double_t up,Int_t i1, Int_t i2, Bool_t /* onlyused */) {
//-----------------------------------------------------------------
// This funtion calculates dE/dX within the "low" and "up" cuts.
//-----------------------------------------------------------------
+ // CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal)
AliTPCParam *param = AliTPCcalibDB::Instance()->GetParameters();
+
Int_t row0 = param->GetNRowLow();
Int_t row1 = row0+param->GetNRowUp1();
Int_t row2 = row1+param->GetNRowUp2();
+ const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
+ Int_t useTot = 0;
+ if (recoParam) useTot = (recoParam->GetUseTotCharge())? 0:1;
//
//
//
- fDEDX[0] = CookdEdxNorm(low,up,0 ,i1 ,i2, kTRUE,kFALSE,2,0);
- fDEDX[1] = CookdEdxNorm(low,up,0 ,0 ,row0,kTRUE,kFALSE,2,0);
- fDEDX[2] = CookdEdxNorm(low,up,0 ,row0,row1,kTRUE,kFALSE,2,0);
- fDEDX[3] = CookdEdxNorm(low,up,0 ,row1,row2,kTRUE,kFALSE,2,0);
+ fDEDX[0] = CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 0);
+ fDEDX[1] = CookdEdxAnalytical(low,up,useTot ,0 ,row0, 0);
+ fDEDX[2] = CookdEdxAnalytical(low,up,useTot ,row0,row1, 0);
+ fDEDX[3] = CookdEdxAnalytical(low,up,useTot ,row1,row2, 0);
//
- fSDEDX[0] = CookdEdxNorm(low,up,0 ,i1 ,i2, kTRUE,kFALSE,2,1);
- fSDEDX[1] = CookdEdxNorm(low,up,0 ,0 ,row0,kTRUE,kFALSE,2,1);
- fSDEDX[2] = CookdEdxNorm(low,up,0 ,row0,row1,kTRUE,kFALSE,2,1);
- fSDEDX[3] = CookdEdxNorm(low,up,0 ,row1,row2,kTRUE,kFALSE,2,1);
+ fSDEDX[0] = CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 1);
+ fSDEDX[1] = CookdEdxAnalytical(low,up,useTot ,0 ,row0, 1);
+ fSDEDX[2] = CookdEdxAnalytical(low,up,useTot ,row0,row1, 1);
+ fSDEDX[3] = CookdEdxAnalytical(low,up,useTot ,row1,row2, 1);
//
- fNCDEDX[0] = TMath::Nint(CookdEdxNorm(low,up,0 ,i1 ,i2, kTRUE,kFALSE,2,2));
- fNCDEDX[1] = TMath::Nint(CookdEdxNorm(low,up,0 ,0 ,row0,kTRUE,kFALSE,2,2));
- fNCDEDX[2] = TMath::Nint(CookdEdxNorm(low,up,0 ,row0,row1,kTRUE,kFALSE,2,2));
- fNCDEDX[3] = TMath::Nint(CookdEdxNorm(low,up,0 ,row1,row2,kTRUE,kFALSE,2,2));
+ fNCDEDX[0] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,i1 ,i2, 2));
+ fNCDEDX[1] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,0 ,row0, 2));
+ fNCDEDX[2] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,row0,row1, 2));
+ fNCDEDX[3] = TMath::Nint(CookdEdxAnalytical(low,up,useTot ,row1,row2, 2));
SetdEdx(fDEDX[0]);
return fDEDX[0];
// SetdEdx(dedx);
// return dedx;
}
-Double_t AliTPCseed::Bethe(Double_t bg){
- //
- // This is the Bethe-Bloch function normalised to 1 at the minimum
- //
- Double_t bg2=bg*bg;
- Double_t bethe;
- if (bg<3.5e1)
- bethe=(1.+ bg2)/bg2*(log(5940*bg2) - bg2/(1.+ bg2));
- else // Density effect ( approximately :)
- bethe=1.15*(1.+ bg2)/bg2*(log(3.5*5940*bg) - bg2/(1.+ bg2));
- return bethe/11.091;
-}
void AliTPCseed::CookPID()
{
Double_t mass=AliPID::ParticleMass(j);
Double_t mom=GetP();
Double_t dedx=fdEdx/fMIP;
- Double_t bethe=Bethe(mom/mass);
+ Double_t bethe=AliMathBase::BetheBlochAleph(mom/mass);
Double_t sigma=fRes*bethe;
if (sigma>0.001){
if (TMath::Abs(dedx-bethe) > fRange*sigma) {
-Float_t AliTPCseed::CookdEdxNorm(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Bool_t shapeNorm,Bool_t posNorm, Int_t padNorm, Int_t returnVal){
+Float_t AliTPCseed::CookdEdxNorm(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Bool_t shapeNorm,Int_t posNorm, Int_t padNorm, Int_t returnVal){
//
// calculates dedx using the cluster
}
}
- if (posNorm){
+ if (posNorm>0){
//
// Do position normalization - relative distance to
// center of pad- time bin
// cluster->GetTimeBin(), cluster->GetZ(),
// cluster->GetSigmaY2(),cluster->GetSigmaZ2(),
// cluster->GetMax(),cluster->GetQ());
+ // scaled response function
+ Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector());
+ Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth();
+ //
+
AliTPCTrackerPoint * point = GetTrackPoint(irow);
Float_t ty = TMath::Abs(point->GetAngleY());
Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty));
if (type==1) corrPos =
parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
- TMath::Nint(cluster->GetTimeBin()),ty,tz,0.5,0.2,1.6);
+ cluster->GetTimeBin(),ty,tz,yres0,zres0,0.4);
if (type==0) corrPos =
parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
- TMath::Nint(cluster->GetTimeBin()),ty,tz,0.5,0.2,cluster->GetQ(),2.5,1.6);
+ cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,0.4);
+ if (posNorm==3){
+ Float_t dr = (250.-TMath::Abs(cluster->GetZ()))/250.;
+ Double_t signtgl = (cluster->GetZ()*point->GetAngleZ()>0)? 1:-1;
+ Double_t p2 = TMath::Abs(TMath::Sin(TMath::ATan(ty)));
+ Float_t corrHis = parcl->QnormHis(ipad,type,dr,p2,TMath::Abs(point->GetAngleZ())*signtgl);
+ if (corrHis>0) corrPos*=corrHis;
+ }
+
}
if (padNorm==1){
//taken from OCDB
- if (type==0 && parcl->fQpadTnorm) corrPadType = (*parcl->fQpadTnorm)[ipad];
- if (type==1 && parcl->fQpadTnorm) corrPadType = (*parcl->fQpadMnorm)[ipad];
+ if (type==0 && parcl->QpadTnorm()) corrPadType = (*parcl->QpadTnorm())[ipad];
+ if (type==1 && parcl->QpadMnorm()) corrPadType = (*parcl->QpadMnorm())[ipad];
}
if (padNorm==2){
}
Float_t mean =suma/sumn;
Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean));
+ //
+ // do time-dependent correction for pressure and temperature variations
+ UInt_t runNumber = 1;
+ Float_t corrTimeGain = 1;
+ AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform();
+ const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
+ if (trans && recoParam->GetUseGainCorrectionTime()>0) {
+ runNumber = trans->GetCurrentRunNumber();
+ //AliTPCcalibDB::Instance()->SetRun(runNumber);
+ TObjArray * timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber);
+ if (timeGainSplines) {
+ UInt_t time = trans->GetCurrentTimeStamp();
+ AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0);
+ AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1);
+ if (fitMIP) {
+ corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitMIP, time);/*fitMIP->Eval(time);*/
+ } else {
+ if (fitFPcosmic) corrTimeGain = AliTPCcalibDButil::EvalGraphConst(fitFPcosmic, time);/*fitFPcosmic->Eval(time);*/
+ }
+ }
+ }
+ mean /= corrTimeGain;
+ rms /= corrTimeGain;
+ //
if (returnVal==1) return rms;
if (returnVal==2) return ncl;
return mean;
}
+Float_t AliTPCseed::CookdEdxAnalytical(Double_t low, Double_t up, Int_t type, Int_t i1, Int_t i2, Int_t returnVal){
+
+ //
+ // calculates dedx using the cluster
+ // low - up specify trunc mean range - default form 0-0.7
+ // type - 1 - max charge or 0- total charge in cluster
+ // //2- max no corr 3- total+ correction
+ // i1-i2 - the pad-row range used for calculation
+ //
+ // posNorm - usage of pos normalization
+ // returnVal - 0 return mean
+ // - 1 return RMS
+ // - 2 return number of clusters
+ //
+ // normalization parametrization taken from AliTPCClusterParam
+ //
+ AliTPCClusterParam * parcl = AliTPCcalibDB::Instance()->GetClusterParam();
+ AliTPCParam * param = AliTPCcalibDB::Instance()->GetParameters();
+ if (!parcl) return 0;
+ if (!param) return 0;
+ Int_t row0 = param->GetNRowLow();
+ Int_t row1 = row0+param->GetNRowUp1();
-Double_t AliTPCseed::BetheMass(Double_t mass){
+ Float_t amp[160];
+ Int_t indexes[160];
+ Int_t ncl=0;
//
- // return bethe-bloch
//
- Float_t bg= P()/mass;
- const Double_t kp1=0.76176e-1;
- const Double_t kp2=10.632;
- const Double_t kp3=0.13279e-4;
- const Double_t kp4=1.8631;
- const Double_t kp5=1.9479;
+ Float_t gainGG = 1; // gas gain factor -always enabled
+ Float_t gainPad = 1; // gain map - used always
+ Float_t corrPos = 1; // local position correction - if posNorm enabled
- Double_t dbg = (Double_t) bg;
+ //
+ //
+ //
+ if (AliTPCcalibDB::Instance()->GetParameters()){
+ gainGG= AliTPCcalibDB::Instance()->GetParameters()->GetGasGain()/20000; //relative gas gain
+ }
- Double_t beta = dbg/TMath::Sqrt(1.+dbg*dbg);
+ const Float_t ktany = TMath::Tan(TMath::DegToRad()*10);
+ const Float_t kedgey =3.;
+ //
+ //
+ for (Int_t irow=i1; irow<i2; irow++){
+ AliTPCclusterMI* cluster = GetClusterPointer(irow);
+ if (!cluster) continue;
+ if (TMath::Abs(cluster->GetY())>cluster->GetX()*ktany-kedgey) continue; // edge cluster
+ Float_t charge= (type%2)? cluster->GetMax():cluster->GetQ();
+ Int_t ipad= 0;
+ if (irow>=row0) ipad=1;
+ if (irow>=row1) ipad=2;
+ //
+ //
+ //
+ AliTPCCalPad * gainMap = AliTPCcalibDB::Instance()->GetDedxGainFactor();
+ if (gainMap) {
+ //
+ // Get gainPad - pad by pad calibration
+ //
+ Float_t factor = 1;
+ AliTPCCalROC * roc = gainMap->GetCalROC(cluster->GetDetector());
+ if (irow < row0) { // IROC
+ factor = roc->GetValue(irow, TMath::Nint(cluster->GetPad()));
+ } else { // OROC
+ factor = roc->GetValue(irow - row0, TMath::Nint(cluster->GetPad()));
+ }
+ if (factor>0.5) gainPad=factor;
+ }
+
+ //
+ // Do position normalization - relative distance to
+ // center of pad- time bin
+
+ AliTPCTrackerPoint * point = GetTrackPoint(irow);
+ Float_t ty = TMath::Abs(point->GetAngleY());
+ Float_t tz = TMath::Abs(point->GetAngleZ()*TMath::Sqrt(1+ty*ty));
+ Float_t yres0 = parcl->GetRMS0(0,ipad,0,0)/param->GetPadPitchWidth(cluster->GetDetector());
+ Float_t zres0 = parcl->GetRMS0(1,ipad,0,0)/param->GetZWidth();
+
+ yres0 *=parcl->GetQnormCorr(ipad, type,0);
+ zres0 *=parcl->GetQnormCorr(ipad, type,1);
+ Float_t effLength=parcl->GetQnormCorr(ipad, type,4)*0.5;
+ Float_t effDiff =(parcl->GetQnormCorr(ipad, type,2)+parcl->GetQnormCorr(ipad, type,3))*0.5;
+ //
+ if (type==1) {
+ corrPos = parcl->GetQnormCorr(ipad, type,5)*
+ parcl->QmaxCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
+ cluster->GetTimeBin(),ty,tz,yres0,zres0,effLength,effDiff);
+ Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.);
+ corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm);
+ corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty);
+ corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz);
+ //
+ }
+ if (type==0) {
+ corrPos = parcl->GetQnormCorr(ipad, type,5)*
+ parcl->QtotCorrection(cluster->GetDetector(), cluster->GetRow(),cluster->GetPad(),
+ cluster->GetTimeBin(),ty,tz,yres0,zres0,cluster->GetQ(),2.5,effLength,effDiff);
+
+ Float_t drm = 0.5-TMath::Abs(cluster->GetZ()/250.);
+ corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,0)*drm);
+ corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,1)*ty*ty);
+ corrPos*=(1+parcl->GetQnormCorr(ipad, type+2,2)*tz*tz);
+ //
+ }
+
+ //
+ amp[ncl]=charge;
+ amp[ncl]/=gainGG;
+ amp[ncl]/=gainPad;
+ amp[ncl]/=corrPos;
+ //
+ ncl++;
+ }
- Double_t aa = TMath::Power(beta,kp4);
- Double_t bb = TMath::Power(1./dbg,kp5);
+ if (type>3) return ncl;
+ TMath::Sort(ncl,amp, indexes, kFALSE);
- bb=TMath::Log(kp3+bb);
+ if (ncl<10) return 0;
- return ((Float_t)((kp2-aa-bb)*kp1/aa));
+ Float_t suma=0;
+ Float_t suma2=0;
+ Float_t sumn=0;
+ Int_t icl0=TMath::Nint(ncl*low);
+ Int_t icl1=TMath::Nint(ncl*up);
+ for (Int_t icl=icl0; icl<icl1;icl++){
+ suma+=amp[indexes[icl]];
+ suma2+=amp[indexes[icl]]*amp[indexes[icl]];
+ sumn++;
+ }
+ Float_t mean =suma/sumn;
+ Float_t rms =TMath::Sqrt(TMath::Abs(suma2/sumn-mean*mean));
+ //
+ // do time-dependent correction for pressure and temperature variations
+ UInt_t runNumber = 1;
+ Float_t corrTimeGain = 1;
+ AliTPCTransform * trans = AliTPCcalibDB::Instance()->GetTransform();
+ const AliTPCRecoParam * recoParam = AliTPCcalibDB::Instance()->GetTransform()->GetCurrentRecoParam();
+ if (trans && recoParam->GetUseGainCorrectionTime()>0) {
+ runNumber = trans->GetCurrentRunNumber();
+ //AliTPCcalibDB::Instance()->SetRun(runNumber);
+ TObjArray * timeGainSplines = AliTPCcalibDB::Instance()->GetTimeGainSplinesRun(runNumber);
+ if (timeGainSplines) {
+ UInt_t time = trans->GetCurrentTimeStamp();
+ AliSplineFit * fitMIP = (AliSplineFit *) timeGainSplines->At(0);
+ AliSplineFit * fitFPcosmic = (AliSplineFit *) timeGainSplines->At(1);
+ if (fitMIP) {
+ corrTimeGain = fitMIP->Eval(time);
+ } else {
+ if (fitFPcosmic) corrTimeGain = fitFPcosmic->Eval(time); // This value describes the ratio FP-to-MIP, hardwired for the moment
+ }
+ }
+ }
+ mean /= corrTimeGain;
+ rms /= corrTimeGain;
+ //
+ if (returnVal==1) return rms;
+ if (returnVal==2) return ncl;
+ return mean;
}
+
+
Float_t AliTPCseed::CookShape(Int_t type){
//
//
//
if (parin) (*parin)=paramIn;
if (parout) (*parout)=paramOut;
+ delete track;
return ncl;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff