Using the st_gmt file stream, nearly all events from day 22 (over 7k events), using Xin Li's version of the GMT code "straight out of the box"...

Trigger is roughly MTD (and perhaps an opposing TOF tray?), with a veto on not having a GMT hit.

Trigger enhancement of global tracks as seen from their position extrapolated to radius= ~215 cm: (trigger looks useful!)




Xin Li's histograms for projection matching (each module offset by 12 cm): (lots of matched tracks!)




Using TTree in same file, my attempt to generate the same plot, but showing Max ADC in color (to see if vertical lines of noise can be reduced via ADC cut): (not the same):



Most prominently hit modules appear to be 1,3,5,7, which are the ones near the central membrane, as seen in this image from Xin Li's presentation of Run 14 He3Au (I think) GMT correlations with data:



-Gene