[Halld-offline] pathLength

[semenov at jlab.org]

Hello Paul,

My question is about pathLength from DChargedTrackHypothesis (or
m_pathLength from DKinematicData that is the same as I understand).

My understanding is that this value is the path length (in cm) from the
vertex point in the target (is it correct?) to some stop point.

The question: What is this "stop point" in the case if the track is
pointing to the BCAL? Is it the exit from the chamber? Is it the entrance
to the BCAL? Is it the center of the shower in the BCAL?

I tried to track this variable using Hall-D Software web page, but I got
nothing except of the connection between the pathLength and m_pathLength
...

Could you please help me?

Thank you,
Andrei