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feat: reading out ccdb values for atof bar hits effective velocity #941

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Merged
N-Plx merged 1 commit into from
Nov 11, 2025
Merged

feat: reading out ccdb values for atof bar hits effective velocity #941

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12 changes: 10 additions & 2 deletions reconstruction/alert/src/main/java/org/jlab/rec/atof/hit/BarHit.java
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Original file line number Diff line number Diff line change
@@ -1,6 +1,7 @@
package org.jlab.rec.atof.hit;

import org.jlab.rec.atof.constants.Parameters;
import org.jlab.rec.constants.CalibrationConstantsLoader;

/**
*
Expand All @@ -14,6 +15,8 @@ public class BarHit extends ATOFHit {

//A bar hit is the combination of a downstream and upstream hits
private ATOFHit hitUp, hitDown;
//Effective velocity read from CCDB
double vEff;

public ATOFHit getHitUp() {
return hitUp;
Expand All @@ -36,7 +39,7 @@ public void setHitDown(ATOFHit hit_down) {
*
*/
public final void computeZ() {
this.setZ(Parameters.VEFF/2. * (hitUp.getTime() - hitDown.getTime()));
this.setZ(this.vEff/2. * (hitUp.getTime() - hitDown.getTime()));
}

/**
Expand All @@ -56,7 +59,7 @@ public final void computeTime() {
time_at_sipm = this.hitUp.getTime();
distance_to_sipm = Parameters.LENGTH_ATOF/2. + this.getZ();
}
this.setTime(time_at_sipm - distance_to_sipm/Parameters.VEFF);
this.setTime(time_at_sipm - distance_to_sipm/this.vEff);
}

/**
Expand Down Expand Up @@ -88,6 +91,11 @@ public BarHit(ATOFHit hit_down, ATOFHit hit_up) {
this.setComponent(10);
this.setX(hit_up.getX());
this.setY(hit_up.getY());

//CCDB readout for the effective velocity
int key = this.getSector()*10000 + this.getLayer()*1000 + this.getComponent()*10;
double[] vEffTable = CalibrationConstantsLoader.ATOF_EFFECTIVE_VELOCITY.get(key);
this.vEff = vEffTable[0];
this.computeZ();
this.computeTime();
this.computeEnergy();
Expand Down