Author: [log in to unmask]
Date: Fri Aug 28 19:00:43 2015
New Revision: 3461
Log:
If a the daughters of a V0 particle both have tracks to matched to Ecal clusters, set the energy of the V0 particle as the sum of the Ecal cluster energies.
Modified:
java/trunk/recon/src/main/java/org/hps/recon/particle/HpsReconParticleDriver.java
Modified: java/trunk/recon/src/main/java/org/hps/recon/particle/HpsReconParticleDriver.java
=============================================================================
--- java/trunk/recon/src/main/java/org/hps/recon/particle/HpsReconParticleDriver.java (original)
+++ java/trunk/recon/src/main/java/org/hps/recon/particle/HpsReconParticleDriver.java Fri Aug 28 19:00:43 2015
@@ -184,8 +184,17 @@
vtxFit.getParameters().get("p2Y"),
vtxFit.getParameters().get("p2Z")));
fittedMomentum = CoordinateTransformations.transformVectorToDetector(fittedMomentum);
- HepLorentzVector fourVector = new BasicHepLorentzVector(0, 0, 0, 0);
- ((BasicHepLorentzVector) fourVector).setV3(fourVector.t(), fittedMomentum);
+
+ // If both the electron and positron have an associated Ecal cluster,
+ // calculate the total energy and assign it to the V0 particle
+ double v0Energy = 0;
+ if (!electron.getClusters().isEmpty() && !positron.getClusters().isEmpty()) {
+ v0Energy += electron.getClusters().get(0).getEnergy();
+ v0Energy += positron.getClusters().get(0).getEnergy();
+ }
+
+ HepLorentzVector fourVector = new BasicHepLorentzVector(v0Energy, fittedMomentum);
+ //((BasicHepLorentzVector) fourVector).setV3(fourVector.t(), fittedMomentum);
((BaseReconstructedParticle) candidate).set4Vector(fourVector);
// VERBOSE :: Output the fitted momentum data.
