Initial energy density as function of impact parameter added.

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

diff --git a/FASTSIM/AliFastGlauber.h b/FASTSIM/AliFastGlauber.h
index df1e4d46a3cbc8641cf18ef637c14572e8c240e7..5bb2e26d13d0e33daeb5ec239f86a024ffea011f 100644 (file)
--- a/FASTSIM/AliFastGlauber.h
+++ b/FASTSIM/AliFastGlauber.h
@@ -18,19 +18,20 @@ class AliFastGlauber : public TObject {
     void SetMaxImpact(Float_t bmax = 20.) {fbMax = bmax;};
     void SetHardCrossSection(Float_t xs = 6.6) {fSigmaHard = xs;}
     
-    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 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 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 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);
     
     void Init(Int_t mode = 0);
     void DrawWSb();
@@ -39,11 +40,12 @@ class AliFastGlauber : public TObject {
     void DrawGeo();
     void DrawBinary();
     void DrawN();    
-    void DrawKernel(Double_t b);
-    void DrawAlmond(Double_t b);
-    void DrawPathLength0(Double_t b);
+    void DrawKernel(Double_t b = 0.);
+    void DrawAlmond(Double_t b = 0.);
+    void DrawPathLength0(Double_t b = 0.);
     void DrawPathLength(Double_t b, Int_t ni = 1000);
-    void DrawIntRadius(Double_t b);
+    void DrawIntRadius(Double_t b = 0.);
+    void DrawEnergyDensity();
     
     Double_t CrossSection(Double_t b1, Double_t b2);
     Double_t FractionOfHardCrossSection(Double_t b1, Double_t b2);
@@ -55,25 +57,26 @@ class AliFastGlauber : public TObject {
     void GetRandom(Int_t& bin, Bool_t& hard);
     Float_t GetRandomImpactParameter(Float_t bmin, Float_t bmax);
  protected:
-    static TF1*    fWSb;         // Wood-Saxon Function (b)
-    static TF2*    fWSbz;        // Wood-Saxon Function (b, z)
-    static TF1*    fWSz;         // Wood-Saxon Function (b = b0, z)
-    static TF1*    fWSta;        // Thickness Function
-    static TF2*    fWStarfi;     // Kernel for Overlap Function
-    static TF1*    fWStaa;       // Overlap Function
-    static TF2*    fWAlmond;     // Interaction Almond
-    static TF1*    fWPathLength0;// Path Length as a function of phi
-    static TF1*    fWPathLength; // Path Length as a function of phi
-    static TF1*    fWIntRadius;  // Interaction Radius
-    static TF1*    fWSgeo;       // dSigma/db geometric
-    static TF1*    fWSbinary;    // dSigma/db binary
-    static TF1*    fWSN;         // dN/db binary
+    static TF1*    fWSb;            // Wood-Saxon Function (b)
+    static TF2*    fWSbz;           // Wood-Saxon Function (b, z)
+    static TF1*    fWSz;            // Wood-Saxon Function (b = b0, z)
+    static TF1*    fWSta;           // Thickness Function
+    static TF2*    fWStarfi;        // Kernel for Overlap Function
+    static TF1*    fWStaa;          // Overlap Function
+    static TF2*    fWAlmond;        // Interaction Almond
+    static TF1*    fWPathLength0;   // Path Length as a function of phi
+    static TF1*    fWPathLength;    // Path Length as a function of phi
+    static TF1*    fWIntRadius;     // Interaction Radius
+    static TF1*    fWSgeo;          // dSigma/db geometric
+    static TF1*    fWSbinary;       // dSigma/db binary
+    static TF1*    fWSN;            // dN/db binary
+    static TF1*    fWEnergyDensity; // Energy density as a function of impact parameter
     
-    Float_t fWSr0;      // Wood-Saxon Parameter r0
-    Float_t fWSd;       // Wood-Saxon Parameter d
-    Float_t fWSw;       // Wood-Saxon Parameter w
-    Float_t fWSn;       // Wood-Saxon Parameter n
-    Float_t fSigmaHard; // Hard Cross Section
+    Float_t fWSr0;           // Wood-Saxon Parameter r0
+    Float_t fWSd;            // Wood-Saxon Parameter d
+    Float_t fWSw;            // Wood-Saxon Parameter w
+    Float_t fWSn;            // Wood-Saxon Parameter n
+    Float_t fSigmaHard;      // Hard Cross Section
     static Float_t fbMax;    // Maximum Impact Parameter
     
     ClassDef(AliFastGlauber,1) // Event geometry simulation in the Glauber Model