/* $Id$ */
+//-----------------------------------------------------------------------------
+// Class AliMUONMathieson
+// -----------------------
+// Implementation of Mathieson response
+// Separated from other classes by CH. Finck with removing circular
+// dependencies
+//-----------------------------------------------------------------------------
+
#include "AliMUONMathieson.h"
#include "AliLog.h"
-#include "AliMUONGeometrySegmentation.h"
#include <TClass.h>
#include <TMath.h>
#include <TRandom.h>
+/// \cond CLASSIMP
ClassImp(AliMUONMathieson)
+/// \endcond
//__________________________________________________________________________
- AliMUONMathieson::AliMUONMathieson() :
+AliMUONMathieson::AliMUONMathieson() :
fSqrtKx3(0.),
fKx2(0.),
fKx4(0.),
fSqrtKy3(0.),
fKy2(0.),
fKy4(0.),
- fPitch(0.)
+ fPitch(0.),
+ fInversePitch(0.)
{
-// Default constructor
+/// Default constructor
+
+}
+//__________________________________________________________________________
+AliMUONMathieson::~AliMUONMathieson()
+{
+/// Destructor
}
//__________________________________________________________________________
void AliMUONMathieson::SetSqrtKx3AndDeriveKx2Kx4(Float_t SqrtKx3)
{
- // Set to "SqrtKx3" the Mathieson parameter K3 ("fSqrtKx3")
- // in the X direction, perpendicular to the wires,
- // and derive the Mathieson parameters K2 ("fKx2") and K4 ("fKx4")
- // in the same direction
+/// Set to "SqrtKx3" the Mathieson parameter K3 ("fSqrtKx3")
+/// in the X direction, perpendicular to the wires,
+/// and derive the Mathieson parameters K2 ("fKx2") and K4 ("fKx4")
+/// in the same direction
fSqrtKx3 = SqrtKx3;
fKx2 = TMath::Pi() / 2. * (1. - 0.5 * fSqrtKx3);
Float_t cx1 = fKx2 * fSqrtKx3 / 4. / TMath::ATan(Double_t(fSqrtKx3));
//__________________________________________________________________________
void AliMUONMathieson::SetSqrtKy3AndDeriveKy2Ky4(Float_t SqrtKy3)
{
- // Set to "SqrtKy3" the Mathieson parameter K3 ("fSqrtKy3")
- // in the Y direction, along the wires,
- // and derive the Mathieson parameters K2 ("fKy2") and K4 ("fKy4")
- // in the same direction
+/// Set to "SqrtKy3" the Mathieson parameter K3 ("fSqrtKy3")
+/// in the Y direction, along the wires,
+/// and derive the Mathieson parameters K2 ("fKy2") and K4 ("fKy4")
+/// in the same direction
fSqrtKy3 = SqrtKy3;
fKy2 = TMath::Pi() / 2. * (1. - 0.5 * fSqrtKy3);
Float_t cy1 = fKy2 * fSqrtKy3 / 4. / TMath::ATan(Double_t(fSqrtKy3));
Float_t
AliMUONMathieson::IntXY(Float_t xi1, Float_t yi1, Float_t xi2, Float_t yi2) const
{
- AliDebug(1,Form("xi1=%e yi1=%e xi2=%e yi2=%e",xi1,yi1,xi2,yi2));
-
- const Float_t kInversePitch = 1./fPitch;
- xi1 *= kInversePitch;
- xi2 *= kInversePitch;
- yi1 *= kInversePitch;
- yi2 *= kInversePitch;
+/// Integrate the Mathieson over x and y
+
+ xi1 *= fInversePitch;
+ xi2 *= fInversePitch;
+ yi1 *= fInversePitch;
+ yi2 *= fInversePitch;
//
// The Mathieson function
Double_t ux1=fSqrtKx3*TMath::TanH(fKx2*xi1);
fKy4*(TMath::ATan(uy2)-TMath::ATan(uy1)));
}
-// -------------------------------------------
-Float_t AliMUONMathieson::IntXY(Int_t idDE, AliMUONGeometrySegmentation* segmentation)
+//______________________________________________________________________________
+void
+AliMUONMathieson::SetPitch(Float_t p1)
{
-// Calculate charge on current pad according to Mathieson distribution
-// using Detection elt
-//
-// Integration limits defined by segmentation model
-//
- Float_t xi1, xi2, yi1, yi2;
- segmentation->IntegrationLimits(idDE, xi1,xi2,yi1,yi2);
- return IntXY(xi1,yi1,xi2,yi2);
+/// Defines the pitch, and store its inverse, which is what is used in fact.
+
+ fPitch = p1;
+ if ( fPitch )
+ {
+ fInversePitch = 1/fPitch;
+ }
+ else
+ {
+ AliError(Form("Invalid pitch %e",p1));
+ fInversePitch = 0.0;
+ }
}
+