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What can we learn from a snapshot of SHMS Rates? (Jan 2018, C(e,e'p) data)

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Dave Mack
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Dave Mack
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01 Feb 2018, 13:07
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02 Feb 2018, 17:46
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02 Feb 2018, 17:46
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01 Feb 2018, 16:40
S/B in the SHMS is poor in these kinematics, but it looks like the HODO 3/4 trigger is clean-ish with perhaps only O(10)% accidentals. For tracking effi determinations in the SHMS, the HODO 3/4 trigger could be pimped with a beta cut that doesn't use tracking information, and/or by requiring an in-time hit in the calorimeter with a low energy threshold. (The scalers suggest the efficiency for PRLO for hadrons is quite respectable.) The S1X scaler appears to be an OR rather than the intended AND. I don't know if this propagates into the HODO trigger. It shouldn't hurt the data.
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