Trigger Ratios for L2 EMC triggers
We are running 5 L2 triggers:
BHT3-L2W
EHT0-L2W
BHT2*BBCMB*L2BGamma
EHT0*BBCMB*L2EGamma
I plotted the fraction between their readout and the readout of their respective base triggers:
The L2W triggers seem stable (Except for Sunday 3/5 -Monday 3/6). However the Gamma triggers are accepting every event.
The current settings for the Gamma triggers are:
BGamma -> rndPrescale=1, seedEtThr=4.5, clusterEtThr=6
EGamma -> rndPrescale=1, seedThr=4.2, threebythreeThr = 5.5, eventThr=5.5
It may be that the reason for accepting every event is the rndPrescale, though I'm not sure its meaning.
As far as the L2W: For the period between of Sunday to Monday morning we were coming out of the BTOW errors so there may have been some remaining issues with the detector or with some configuration files. Strangly, I see the ratio creep up on sunday, starting around run 18064015:
Then, the ratio goes to 1 by monday and then drops suddenly around run 18065040. I don't know if this is understood or not.
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