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00001 #ifndef PixelTrackFitting_PixelTrackErrorParam_H 00002 #define PixelTrackFitting_PixelTrackErrorParam_H 00003 #include <cmath> 00004 00005 class PixelTrackErrorParam { 00006 public: 00007 PixelTrackErrorParam(double eta, double pt); 00008 double errPt() const; 00009 // { return ptPar0_[theIEta]*thePt + ptPar1_[theIEta]*thePt2; } 00010 inline double errCot() const { return cotPar0_[theIEta] + cotPar1_[theIEta]/thePt + cotPar2_[theIEta]/thePt2; } 00011 inline double errTip() const { return sqrt(tipPar0_[theIEta] + tipPar1_[theIEta]/thePt2); } 00012 inline double errZip() const { return sqrt(zipPar0_[theIEta] + zipPar1_[theIEta]/thePt2); } 00013 inline double errPhi() const { return sqrt(phiPar0_[theIEta] + phiPar1_[theIEta]/thePt2); } 00014 00015 private: 00016 unsigned int theIEta; 00017 double thePt, thePt2; 00018 00019 static const unsigned int nEta = 25; 00020 static double ptPar0_[nEta], ptPar1_[nEta]; 00021 static double cotPar0_[nEta], cotPar1_[nEta], cotPar2_[nEta]; 00022 static double tipPar0_[nEta], tipPar1_[nEta]; 00023 static double zipPar0_[nEta], zipPar1_[nEta]; 00024 static double phiPar0_[nEta], phiPar1_[nEta]; 00025 }; 00026 00027 #endif
1.7.3