File indexing completed on 2025-08-05 08:11:20
0001 #include "TObject.h"
0002 #include "TH2F.h"
0003 #include "TProfile.h"
0004
0005 struct Beamspot : TObject
0006 {
0007 double x;
0008 double y;
0009 double z;
0010 double sigma_x;
0011 double sigma_y;
0012 double sigma_z;
0013 double xy_correlation;
0014
0015 double covariance[21];
0016 double dzdx;
0017 double dzdy;
0018 double zwidth;
0019
0020 int Ntracklets;
0021 TH2F* d0phi0dist;
0022 TH2F* d0phi0dist_bkgrm;
0023 TProfile* d0phi0dist_bkgrm_prof;
0024 TH1F* z0dist;
0025 TH2F* pcadist;
0026
0027 Beamspot() : x(0.),y(0.),z(0.),sigma_x(0.),sigma_y(0.),sigma_z(0.),Ntracklets(0.)
0028 {
0029 for(int i=0;i<21;i++) covariance[i] = 1.;
0030 d0phi0dist = new TH2F("d0phi0dist","tracklet phi0 vs. d0;#phi [radian];DCA [cm]",200,-M_PI,M_PI,200,-1.,1.);
0031 z0dist = new TH1F("z0","z0",200,-40.,40.);
0032 pcadist = new TH2F("pcadist","PCA",200,-.5,.5,200,-.5,.5);
0033 }
0034
0035 void identify()
0036 {
0037 std::cout << "Beamspot: " << std::endl;
0038 std::cout << "(x,y,z) = (" << x << " +- " << sigma_x << ", " << y << " +- " << sigma_y << ", " << z << " +- " << sigma_z << ")" << std::endl;
0039 std::cout << "Ntracklets: " << Ntracklets << std::endl;
0040 }
0041 };
