ROOT DST Files

Overview

The ROOT DST files are generated from the LCIO output of the reconstruction.  These files can be analyzed using the HpsEvent API in combination with the ROOT data analysis framework.

DST Structure

The ROOT based DST's are composed of HpsEvent objects which are used to encapsulate collections (TClonesArray) of physics objects e.g. tracks and particles.  The collections encapsulated by an HpsEvent are shown on Table 1. 

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