We have found that L2sum[0]==L2sum[1], up to occasional single-bit differences. This is problematic, since many triggers we would like to select are supposed to be in L2sum[1] but aren't accessible. Since the FMS L2 bits (DSM FP201) are sent into channel 5 of the TCU, we can examine the trigger tree variable lastdsm[5] as well. The following study uses this variable along with the 2012 FMS DSM algorithm documentation for the bit map, shown in the following table:

Trigger Thresholds:

JP0 -- 14
JP1 -- 18
JP2 -- 29 (takeall)

SmBS0 -- 13
SmBS1 -- 22 (takeall)

LgBS0 -- 17
LgBS1 -- 25 (takeall)
LgBS2 -- 25 (??)

HT0 -- 4
HT1 -- 8
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Trigger Prescales

[ PLOTTED VS RUN INDEX HERE -- http://www.star.bnl.gov/protected/spin/dilks/trgmon12/500/prescale_canv.png ]
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The following images are for each class of triggers {JP, SmBS, LgBS, HT}; each has three panes:
-- Each column in the middle plot represents a single combination of the 2 or 3 triggers within each trigger class, denoted by the red boxes
-- The histogram at the top is the number of events of the corresponding trigger combination directly below it. Notice that a higher threshold trigger will always satisfy the lower threshold trigger(s).
-- The bottom plot shows the pT distributions, where the colors are defined by the trigger number (e.g. "1" in the JP plots means "JP1", specifically, "JP1 & JP0" since lower threshold triggers will also fire)

Runs from two well-seperated days are plotted, 80 and 108, which show how much the trigger pT thresholds increase, likely because of radiation damage

Few runs from DAY 80:

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Few runs from DAY 108:

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