Brief Kinematic Fitting Example

This is a test. z

vector<DKinematicData> initial;
vector<DKinematicData> final;
vector<DKinematicData> initial_post;
vector<DKinematicData> final_post;

//Add the beam particle to the initial state
DKinematicData beam_photon;
DVector3 mom(0.0, 0.0, 9.0);
beam_photon.setMomentum(mom);
beam_photon.setPosition(pos);
beam_photon.setMass(0.0);
beam_photon.setCharge(0.0);
beam_photon.setMassFixed();
beam_photon.clearErrorMatrix();

initial.push_back(beam_photon);

//Add the target to the initial state
DKinematicData kd_targ;
kd_targ.setMass(0.93827);
kd_targ.setCharge(1.0);
kd_targ.setMassFixed();
kd_targ.setMomentum( DVector3(0.0, 0.0, 0.0) );
kd_targ.clearErrorMatrix();
initial.push_back(kd_targ);

//Add all our particles to the final state
final.push_back(proton[k]);
final.push_back(pip[l]);
final.push_back(pip[m]);
final.push_back(pim[n]);
final.push_back(pim[o]);

double cl=kfit.Prob();