AnalysisUtils::Delta Namespace Reference

compute \( \Delta \) More...

Functions
double	phi (const INavigable4Momentum *p1, const INavigable4Momentum *p2)
	\( \Delta\phi \)
double	R (const INavigable4Momentum *p1, const double v_eta, const double v_phi)
	\( \Delta{R} \)
double	R (const INavigable4Momentum *p1, const INavigable4Momentum *p2)
	\( \Delta{R} \)

Detailed Description

compute \( \Delta \)

Function Documentation

phi()

double AnalysisUtils::Delta::phi ( const INavigable4Momentum * p1, const INavigable4Momentum * p2 )

inline

\( \Delta\phi \)

Definition at line 39 of file AnalysisMisc.h.

                                                                                     {
      double phi1 = (p1->phi()>M_PI) ? p1->phi()-2*M_PI : p1->phi();
      double phi2 = (p2->phi()>M_PI) ? p2->phi()-2*M_PI : p2->phi();
      double dphi = fabs(phi1-phi2);
      if(dphi>M_PI) dphi = 2*M_PI-dphi;
      return dphi;
    }

R() [1/2]

double AnalysisUtils::Delta::R ( const INavigable4Momentum * p1, const double v_eta, const double v_phi )

inline

\( \Delta{R} \)

Definition at line 49 of file AnalysisMisc.h.

                                                                                            {
      double phi1 = (p1->phi()>M_PI) ? p1->phi()-2*M_PI : p1->phi();
      double phi2 = (v_phi>M_PI) ? v_phi-2*M_PI : v_phi;
      double dphi = fabs(phi1-phi2);
      if(dphi>M_PI) dphi = 2*M_PI-dphi;
      double deta = p1->eta() - v_eta;
      return sqrt(dphi*dphi+deta*deta);
    }

R() [2/2]

double AnalysisUtils::Delta::R ( const INavigable4Momentum * p1, const INavigable4Momentum * p2 )

inline

\( \Delta{R} \)

Definition at line 60 of file AnalysisMisc.h.

                                                                                   {
      return R (p1, p2->eta(), p2->phi());
    }