Difference between revisions of "DF Definitions of Tracking Elements"

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Below are definitions of the structures used in the clas12 dc reconstructions.
 
Below are definitions of the structures used in the clas12 dc reconstructions.
 
=Hits=
 
=Hits=
<blockquote>
+
==Hit.java==
<p>"A DC hit is characterized by superlayer, layer, sector, wire number, and time."</p>
+
 
<p> - Veronique Ziegler, clas12-offline-software, Hit.java</p>
+
==FittedHit.java==
</blockquote>
 
  
Hit.java defines the representation of a drift chamber wire hit.
 
 
=Clusters=
 
=Clusters=
<blockquote>
 
<p>"A cluster in the DC consists of an array of hits that are grouped together according to the algorithm of the ClusterFinder class"</p>
 
<p> - Veronique Ziegler, clas12-offline-software, Cluster.java</p>
 
</blockquote>
 
 
 
=Segments=
 
=Segments=
<blockquote>
 
<p>"A class to describe segment objects, where a Segment is a fitted cluster that has been pruned of hits with bad residuals"</p>
 
<p> - Veronique Ziegler, clas12-offline-software, Segment.java</p>
 
</blockquote>
 
 
 
=Crosses=
 
=Crosses=
<blockquote>
 
<p>"The crosses are objects used to find tracks and are characterized by a 3-D point and a direction unit vector."</p>
 
<p> - Veronique Ziegler, clas12-offline-software, Cross.java</p>
 
</blockquote>
 
 
=Tracks=
 
=Tracks=
<blockquote>
 
<p>"A class representing track candidates in the DC.  A track has a trajectory represented by an ensemble of geometrical state vectors along its path, a charge and a momentum"</p>
 
<p> - Veronique Ziegler, clas12-offline-software, Track.java</p>
 
</blockquote>
 

Revision as of 16:37, 24 May 2018

Below are definitions of the structures used in the clas12 dc reconstructions.

Hits

Hit.java

FittedHit.java

Clusters

Segments

Crosses

Tracks