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File indexing completed on 2021-02-14 13:32:38

0001 #ifndef TFitConstraintM_hh
0002 #define TFitConstraintM_hh
0003 
0004 #include "PhysicsTools/KinFitter/interface/TAbsFitConstraint.h"
0005 #include <vector>
0006 
0007 #include "TMatrixD.h"
0008 
0009 class TAbsFitParticle;
0010 
0011 class TFitConstraintM : public TAbsFitConstraint {
0012 public:
0013   TFitConstraintM();
0014   TFitConstraintM(std::vector<TAbsFitParticle*>* ParList1, std::vector<TAbsFitParticle*>* ParList2, Double_t Mass = 0);
0015   TFitConstraintM(const TString& name,
0016                   const TString& title,
0017                   std::vector<TAbsFitParticle*>* ParList1,
0018                   std::vector<TAbsFitParticle*>* ParList2,
0019                   Double_t Mass = 0);
0020 
0021   ~TFitConstraintM() override;
0022 
0023   void addParticle1(TAbsFitParticle* particle);
0024   void addParticle2(TAbsFitParticle* particle);
0025   void addParticles1(TAbsFitParticle* p1,
0026                      TAbsFitParticle* p2 = nullptr,
0027                      TAbsFitParticle* p3 = nullptr,
0028                      TAbsFitParticle* p4 = nullptr,
0029                      TAbsFitParticle* p5 = nullptr,
0030                      TAbsFitParticle* p6 = nullptr,
0031                      TAbsFitParticle* p7 = nullptr,
0032                      TAbsFitParticle* p8 = nullptr,
0033                      TAbsFitParticle* p9 = nullptr,
0034                      TAbsFitParticle* p10 = nullptr);
0035   void addParticles2(TAbsFitParticle* p1,
0036                      TAbsFitParticle* p2 = nullptr,
0037                      TAbsFitParticle* p3 = nullptr,
0038                      TAbsFitParticle* p4 = nullptr,
0039                      TAbsFitParticle* p5 = nullptr,
0040                      TAbsFitParticle* p6 = nullptr,
0041                      TAbsFitParticle* p7 = nullptr,
0042                      TAbsFitParticle* p8 = nullptr,
0043                      TAbsFitParticle* p9 = nullptr,
0044                      TAbsFitParticle* p10 = nullptr);
0045   void setMassConstraint(Double_t Mass) { _TheMassConstraint = Mass; }
0046 
0047   // returns derivative df/dP with P=(p,E) and f the constraint f=0 for
0048   // one particle. The matrix contains one row (df/dp, df/dE).
0049   TMatrixD* getDerivative(TAbsFitParticle* particle) override;
0050   Double_t getInitValue() override;
0051   Double_t getCurrentValue() override;
0052 
0053   Bool_t OnList(std::vector<TAbsFitParticle*>* List, TAbsFitParticle* particle);
0054   Double_t CalcMass(std::vector<TAbsFitParticle*>* List, Bool_t IniVal);
0055 
0056   TString getInfoString() override;
0057   void print() override;
0058 
0059 protected:
0060   std::vector<TAbsFitParticle*>
0061       _ParList1;  // Vector containing first list of constrained particles ( sum[ m_i ] - sum[ m_j ] == 0 )
0062   std::vector<TAbsFitParticle*>
0063       _ParList2;  // Vector containing second list of constrained particles ( sum[ m_i ] - sum[ m_j ] == 0 )
0064   Double_t _TheMassConstraint;
0065 
0066 private:
0067   ClassDefOverride(TFitConstraintM, 0)
0068 };
0069 
0070 #endif