[G12] g12 triggers

[Andrea Celentano]

Dear g12,
had anyone any change to look at this? Furthermore, I see other inconsistencies in the g12 trig table (table 3 in the note). For example, I never see trigger bit 8, that a part from L2, should be the same as trigger bit 1.
I see this effect also in MK thesis (fig. 93 pag 140) - trigger bit 2 is ON for some events, while trigger bit 8 is always OFF.

Thanks
Andrea

> On Feb 14, 2019, at 16:49, Andrea Celentano <andrea.celentano at ge.infn.it> wrote:
> 
> Dear g12,
> I am looking at the trigger efficiency of trigger bit #5 (STxTOF x (ECPx2)). 
> 
> Before doing so, I wanted to do some checks on the way trigger bits were reported in the output banks. 
> I have taken from tape a single file from run 56541 (file A00), and I opened it via bosdump, printing HEAD, TGBI and RC26 banks.
> 
> According to g12 note (table 2 pag. 5), for this run trigger bits 1..6 are MORA x (STxTOF)_i x (STxTOF), without any prescale and without L2.
> Trigger bit 8 is MORA x (STxTOF)x2.
> 
> Therefore, for any event with one of trigger bits 1..6 set, trigger bit 8 should also be present (for example, if trigger bit 1 is set, it means that MORA is TRUE, and that there are two sectors with STxTOF, one of which is sector #1: trigger bit 8 is also satisfied for this event).
> 
> However, this is not the case for the events I am scrutinizing. I report to you some events showing this issue. I also CC this to Sergey and Ben, so that they can provide further input to the discussion.
> 
> 
> EVENT:
> Version:        0
> Run:            56541
> Event:          858
> Type:           1  (physics data)
> ROC:            0
> CLASS:          14
> Trgbit:         0x5405        --> bit 1, bit 3, bit 11, bit 13, bit 15. By the way, what are trigger bit 13 and 15? They are not reported in table 2.
> TIME:           Thu May 21 18:02:01 2144
> 
> EVENT:
> Version:        0
> Run:            56541
> Event:          853
> Type:           1  (physics data)
> ROC:            0
> CLASS:          14
> Trgbit:         0x8c20     --> bit 6, bit 11, bit 12, bit 16. By the way, what is trigger bit 16? This is not reported in table 2.
> TIME:           Thu May 21 18:02:01 2144
> 
> EVENT:
> Version:        0
> Run:            56541
> Event:          947
> Type:           1  (physics data)
> ROC:            0
> CLASS:          14
> Trgbit:         0x5c15  --> bit 1, bit 3, bit 5, bit 11, bit 12, bit 13, bit 15. By the way, what is trigger bit 15? This is not reported in table 2.
> TIME:           Thu May 21 18:02:01 2144
> 
> 
> Thanks,
> Andrea

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