Introduction

Robert Johnson has implemented a cosmic-ray track finder with the goal of identifying long, straight, tracks that start close to the edge of the tracker. We would like to make sure to propagate these tracks to the ACD.

Implementation

Robert Johnson added a set of merit variables to the old AcdValsTools, but that tool has been replaced by Acd2ValsTool. Eric recently transported these merit variables to Acd2ValsTool. While the CR tracks live on their own track collection object, Eric has passed them through AcdReconV2 by appending them to the primary track collection (incrementing the CR track index by +100). He's also integrated Robert Johnson's merit variables into Acd2ValsTool. Two sets of variables are created: 1) CR variables which pick the "best" CR track for vetoing the event, 2) CR1 variables, choosing the cosmic-ray track with the most hits.

Validation

I've run a few streams of diagnostic muons and all gamma with the CR track finder turned on. It appears that the all of the Acd2CR variables are being filled. Specifically, I compare the distance to active tiles and the energy deposited in active tiles between the cosmic-ray tracks, the tree-based tracks, and the MC truth.