#include "AliMUONStringIntMap.h"
#include "AliMUONGeometryDetElement.h"
+#include "AliMpCDB.h"
#include "AliMpDEManager.h"
#include "AliConst.h"
#include "AliTrackReference.h"
#include "AliLog.h"
-#include <TRandom.h>
-#include <TF1.h>
#include <TClonesArray.h>
+#include <TF1.h>
+#include <TF2.h>
+#include <TGeoGlobalMagField.h>
+#include <TGeoMatrix.h>
+#include <TRandom.h>
#include <TRandom.h>
#include <TVirtualMC.h>
-#include <TGeoMatrix.h>
#include <string>
AliMUONv1::AliMUONv1()
: AliMUON(),
fAngleEffect(kTRUE),
+ fMagEffect(kTRUE),
fStepMaxInActiveGas(0.6),
fStepSum(0x0),
fDestepSum(0x0),
fTrackPosition(),
fElossRatio(0x0),
fAngleEffect10(0x0),
- fAngleEffectNorma(0x0)
+ fAngleEffectNorma(0x0),
+ fMagAngleEffectNorma(0x0)
{
/// Default constructor
AliMUONv1::AliMUONv1(const char *name, const char* title)
: AliMUON(name, title),
fAngleEffect(kTRUE),
+ fMagEffect(kTRUE),
fStepMaxInActiveGas(0.6),
fStepSum(0x0),
fDestepSum(0x0),
fTrackPosition(),
fElossRatio(0x0),
fAngleEffect10(0x0),
- fAngleEffectNorma(0x0)
+ fAngleEffectNorma(0x0),
+ fMagAngleEffectNorma(0x0)
{
/// Standard onstructor
AliDebug(1,Form("ctor this=%p",this));
+ // Load mapping
+ if ( ! AliMpCDB::LoadMpSegmentation() ) {
+ AliFatal("Could not access mapping from OCDB !");
+ }
+
// By default include all stations
fStepSum = new Float_t [AliMUONConstants::NCh()];
fAngleEffectNorma->SetParameter(1,-6.809e-01);
fAngleEffectNorma->SetParameter(2,5.151e-02);
fAngleEffectNorma->SetParameter(3,-1.490e-03);
+
+ // Magnetic field effect: Normalisation form theta=16 degres (eq. 10 degrees B=0) to theta between -20 and 20 (Lamia Benhabib jun 2006 )
+ // Angle with respect to the wires assuming that chambers are perpendicular to the z axis.
+ fMagAngleEffectNorma = new TF2("MagAngleEffectNorma","121.24/(([1]+[2]*abs(y))+[3]*abs(x-[0]*y)+[4]*abs((x-[0]*y)*(x-[0]*y))+[5]*abs((x-[0]*y)*(x-[0]*y)*(x-[0]*y))+[6]*abs((x-[0]*y)*(x-[0]*y)*(x-[0]*y)*(x-[0]*y)))",-20.0,20.0,-1.,1.);
+ fMagAngleEffectNorma->SetParameters(8.6995, 25.4022, 13.8822, 2.4717, 1.1551, -0.0624, 0.0012);
}
//___________________________________________
delete fElossRatio;
delete fAngleEffect10;
delete fAngleEffectNorma;
+ delete fMagAngleEffectNorma;
}
//__________________________________________________
fGeometryBuilder->CreateMaterials();
}
+//________________________________________________________________
+void AliMUONv1::UpdateInternalGeometry()
+{
+/// Update geometry after applying mis-alignment
+
+ // Load mapping
+ if ( ! AliMpCDB::LoadMpSegmentation() ) {
+ AliFatal("Could not access mapping from OCDB !");
+ }
+
+ fGeometryBuilder->UpdateInternalGeometry();
+}
+
//________________________________________________________________
void AliMUONv1::AddAlignableVolumes() const
{
//
// Build response
//
- AliMUONResponseFactory respFactory("default");
+ AliMUONResponseFactory respFactory("default", fIsTailEffect);
respFactory.Build(this);
}
if( gMC->IsTrackEntering() ) {
Float_t theta = fTrackMomentum.Theta();
- if ((TMath::Pi()-theta)*kRaddeg>=15.) gMC->SetMaxStep(fStepMaxInActiveGas); // We use Pi-theta because z is negative
+ if ( fIsMaxStep && (TMath::Pi()-theta)*kRaddeg>=15. ) {
+ gMC->SetMaxStep(fStepMaxInActiveGas); // We use Pi-theta because z is negative
+ }
iEnter = 1;
gMC->TrackPosition(xyzEnter[0], xyzEnter[1], xyzEnter[2]); // save coordinates of entrance point
}
gMC->IsTrackDisappeared()||
(fStepSum[idvol]>fStepMaxInActiveGas) ) {
- if ( gMC->IsTrackExiting() ||
- gMC->IsTrackStop() ||
- gMC->IsTrackDisappeared() ) gMC->SetMaxStep(kBig);
+ if ( fIsMaxStep &&
+ ( gMC->IsTrackExiting() ||
+ gMC->IsTrackStop() ||
+ gMC->IsTrackDisappeared() ) ) gMC->SetMaxStep(kBig);
if (fDestepSum[idvol] == 0) {
// AZ - no energy release
fStepSum[idvol] = 0; // Reset for the next event
Float_t sigmaEffectThetadegrees;
Float_t eLossParticleELossMip;
Float_t yAngleEffect=0.;
- Float_t thetawires = TMath::Abs( TMath::ASin( TMath::Sin(TMath::Pi()-theta) * TMath::Sin(phi) ) );// We use Pi-theta because z is negative
-
+ Float_t thetawires = TMath::ASin( TMath::Sin(TMath::Pi()-theta) * TMath::Sin(phi) ) ;// We use Pi-theta because z is negative
+ Double_t bField[3] = {0};
+ fTrackPosition.Vect().GetXYZ(tmp);
+ TGeoGlobalMagField::Instance()->Field(tmp,bField);
- if (fAngleEffect){
+ if (fAngleEffect && !fMagEffect){
+ thetawires = TMath::Abs(thetawires);
if ( (betaxGamma >3.2) && (thetawires*kRaddeg<=15.) ) {
betaxGamma=TMath::Log(betaxGamma);
eLossParticleELossMip = fElossRatio->Eval(betaxGamma);
yAngleEffect=1.e-04*gRandom->Gaus(0,sigmaEffectThetadegrees); // Error due to the angle effect in cm
}
}
-
- AliMUONHit hit(fIshunt,
- gAlice->GetMCApp()->GetCurrentTrackNumber(),
- detElemId, ipart,
- fTrackPosition.X(),
- fTrackPosition.Y()+yAngleEffect,
- fTrackPosition.Z(),
- gMC->TrackTime(),
- fTrackMomentum.P(),
- theta,
- phi,
- fStepSum[idvol],
- fDestepSum[idvol],
- fTrackPosition.X(),
- fTrackPosition.Y(),
- fTrackPosition.Z());
+ else if (fAngleEffect && fMagEffect) {
+ if ( (betaxGamma >3.2) && (TMath::Abs(thetawires*kRaddeg)<=15.) ) {
+ betaxGamma=TMath::Log(betaxGamma);
+ eLossParticleELossMip = fElossRatio->Eval(betaxGamma);
+ // 10 degrees is a reference for a model (arbitrary)
+ sigmaEffect10degrees=fAngleEffect10->Eval(eLossParticleELossMip);// in micrometers
+ // Angle with respect to the wires assuming that chambers are perpendicular to the z axis.
+ sigmaEffectThetadegrees = sigmaEffect10degrees/fMagAngleEffectNorma->Eval(thetawires*kRaddeg,bField[0]/10.); // For 5mm gap
+ if ( (iChamber==1) || (iChamber==2) )
+ sigmaEffectThetadegrees/=(1.09833e+00+1.70000e-02*(thetawires*kRaddeg)); // The gap is different (4mm)
+ yAngleEffect=1.e-04*gRandom->Gaus(0,sigmaEffectThetadegrees); // Error due to the angle effect in cm
+ }
+ }
+ AliMUONHit hit(fIshunt,
+ gAlice->GetMCApp()->GetCurrentTrackNumber(),
+ detElemId, ipart,
+ fTrackPosition.X(),
+ fTrackPosition.Y()+yAngleEffect,
+ fTrackPosition.Z(),
+ gMC->TrackTime(),
+ fTrackMomentum.P(),
+ theta,
+ phi,
+ fStepSum[idvol],
+ fDestepSum[idvol],
+ fTrackPosition.X(),
+ fTrackPosition.Y(),
+ fTrackPosition.Z());
+
fHitStore->Add(hit);
fStepSum[idvol] =0; // Reset for the next event
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff