14 class AliITSVertex : public TObject {
20 Double_t PhiFunc(Float_t p[]);
22 // This class determines 3D vertex position, resolution and signal
23 // to noise ratio, for arbitrary location (x,y,z) of the vertex.
24 // Tests have been carried out with vertex locations up to radial
25 // distances of 10 mm in the transverse plane and up to 15 cm along z.
26 // The procedure has been tested also in case of high magnetic fields
27 // in ALICE, up to B = 0.5 T.
29 Double_t GetZv() {return (Double_t)fPosition[2];}
30 Double_t GetZRes() {return fResolution[2];}
31 Double_t GetZSNR() {return fSNR[2];}
32 Double_t GetYv() {return (Double_t)fPosition[1];}
33 Double_t GetYRes() {return fResolution[1];}
34 Double_t GetYSNR() {return fSNR[1];}
35 Double_t GetXv() {return (Double_t)fPosition[0];}
36 Double_t GetXRes() {return fResolution[0];}
37 Double_t GetXSNR() {return fSNR[0];}
42 Double_t *fResolution;
45 ClassDef(AliITSVertex,1) // Class for Vertex finder