Adding Domenico Colella as responsible for SPD part in TRI pp

[u/mrichter/AliRoot.git] / FASTSIM / AliFastGlauber.h

diff --git a/FASTSIM/AliFastGlauber.h b/FASTSIM/AliFastGlauber.h
index 08e1fea2a818c9e8f626a3e974724eb1c76da73e..0cd7c4e4ee757f4c4288e1adea1e4734b656ef8f 100644 (file)
--- a/FASTSIM/AliFastGlauber.h
+++ b/FASTSIM/AliFastGlauber.h
@@ -34,10 +34,11 @@ class AliFastGlauber : public TObject {
     void SetNucleus(Int_t n=208) {fA=n;}
     void SetAuAuRhic();
     void SetPbPbLHC();
-    void SetFileName(TString &fn){fName=fn;}
+    void SetFileName(const TString &fn){fName=fn;}
     void SetFileName(const char *fn="$(ALICE_ROOT)/FASTSIM/data/glauberPbPb.root"){fName=fn;}
 
     const TF1* GetWSB()            const {return fgWSb;}
+    const TF1* GetRWSB()           const {return fgRWSb;}
     const TF2* GetWSbz()           const {return fgWSbz;}
     const TF1* GetWSz()            const {return fgWSz;} 
     const TF1* GetWSta()           const {return fgWSta;}
@@ -107,7 +108,11 @@ class AliFastGlauber : public TObject {
     void SetCentralityClass(Double_t xsecFrLow=0.0,Double_t xsecFrUp=0.1);    
     void GetRandomBHard(Double_t& b);
     void GetRandomXY(Double_t& x,Double_t& y);
-    void GetLastXY(Double_t xy[2]) {xy[0] = fXY[0]; xy[1] = fXY[1];}
+    void GetSavedXY(Double_t xy[2]) const {xy[0] = fXY[0]; xy[1] = fXY[1];} 
+    void GetSavedI0I1(Double_t i0i1[2]) const {i0i1[0] = fI0I1[0]; i0i1[1] = fI0I1[1];}
+    void SaveXY(Double_t x, Double_t y) {fXY[0] = x; fXY[1] = y;}
+    void SaveI0I1(Double_t i0, Double_t i1) {fI0I1[0] = i0; fI0I1[1] = i1;}
+
     void GetRandomPhi(Double_t& phi);
     Double_t CalculateLength(Double_t b=0.,Double_t x0=0.,Double_t y0=0.,
                              Double_t phi0=0.);
@@ -118,7 +123,7 @@ class AliFastGlauber : public TObject {
                                    Double_t b=-1.);
     void GetLengthsBackToBack(Double_t& ell1,Double_t& ell2,
                              Double_t b=-1.);
-    void GetLengthsForPythia(Int_t n,Double_t* phi,Double_t* ell,
+    void GetLengthsForPythia(Int_t n,Double_t* const phi,Double_t* ell,
                             Double_t b=-1.);
     void PlotBDistr(Int_t n=1000);
     void PlotLengthDistr(Int_t n=1000,Bool_t save=kFALSE,
@@ -160,22 +165,23 @@ class AliFastGlauber : public TObject {
     AliFastGlauber& operator=(const AliFastGlauber & rhs);
     void Copy(TObject&) const;
  protected:
-    static Double_t WSb            (Double_t *xx, Double_t *par);
-    static Double_t WSbz           (Double_t *xx, Double_t *par);
-    static Double_t WSz            (Double_t *xx, Double_t *par);
-    static Double_t WSta           (Double_t *xx, Double_t *par);
-    static Double_t WStarfi        (Double_t *xx, Double_t *par);
-    static Double_t WStaa          (Double_t *xx, Double_t *par);
-    static Double_t WKParticipants (Double_t *xx, Double_t *par);
-    static Double_t WParticipants  (Double_t *xx, Double_t *par);    
-    static Double_t WSgeo          (Double_t *xx, Double_t *par);
-    static Double_t WSbinary       (Double_t *xx, Double_t *par);
-    static Double_t WSN            (Double_t *xx, Double_t *par);
-    static Double_t WAlmond        (Double_t *xx, Double_t *par);
-    static Double_t WPathLength0   (Double_t *xx, Double_t *par);
-    static Double_t WPathLength    (Double_t *xx, Double_t *par);
-    static Double_t WIntRadius     (Double_t *xx, Double_t *par);
-    static Double_t WEnergyDensity (Double_t *xx, Double_t *par);
+    static Double_t RWSb           (const Double_t *xx, const Double_t *par);
+    static Double_t WSb            (const Double_t *xx, const Double_t *par);
+    static Double_t WSbz           (const Double_t *xx, const Double_t *par);
+    static Double_t WSz            (const Double_t *xx, const Double_t *par);
+    static Double_t WSta           (const Double_t *xx, const Double_t *par);
+    static Double_t WStarfi        (const Double_t *xx, const Double_t *par);
+    static Double_t WStaa          (const Double_t *xx, const Double_t *par);
+    static Double_t WKParticipants (const Double_t *xx, const Double_t *par);
+    static Double_t WParticipants  (const Double_t *xx, const Double_t *par);    
+    static Double_t WSgeo          (const Double_t *xx, const Double_t *par);
+    static Double_t WSbinary       (const Double_t *xx, const Double_t *par);
+    static Double_t WSN            (const Double_t *xx, const Double_t *par);
+    static Double_t WAlmond        (const Double_t *xx, const Double_t *par);
+    static Double_t WPathLength0   (const Double_t *xx, const Double_t *par);
+    static Double_t WPathLength    (const Double_t *xx, const Double_t *par);
+    static Double_t WIntRadius     (const Double_t *xx, const Double_t *par);
+    static Double_t WEnergyDensity (const Double_t *xx, const Double_t *par);
 
     void Reset() const;
  private:
@@ -188,6 +194,7 @@ class AliFastGlauber : public TObject {
      
     
     static TF1*    fgWSb;            // Wood-Saxon Function (b)
+    static TF1*    fgRWSb;           // Wood-Saxon Function (b) with phase space factor
     static TF2*    fgWSbz;           // Wood-Saxon Function (b, z)
     static TF1*    fgWSz;            // Wood-Saxon Function (b = b0, z)
     static TF1*    fgWSta;           // Thickness Function
@@ -217,7 +224,8 @@ class AliFastGlauber : public TObject {
 
     Float_t fBmin;      // Minimum b (set through centrality selection)
     Float_t fBmax;      // Coresponding maximum b
-    Double_t fXY[2];    // Last generated production point 
+    Double_t fXY[2];    // Current generated production point
+    Double_t fI0I1[2];  // Current integrals I0 and I1
     Int_t fEllDef;      // definition of length (see CalculateLength())
     TString fName;      // filename of stored distributions
     ClassDef(AliFastGlauber,2) // Event geometry simulation in the Glauber Model