[Clas12_rgb] [EXTERNAL] No meeting today! But here's an update :-)

[Daria Sokhan]

Dear all,

There is not much to discuss and apart from a rather drunk-looking beam,
things appear to be running smoothly (please touch wood!). Here's what
happened:

* Hall C tried to come online but failed -- PD told me that this is now
postponed till Monday. Sucks for them, good for us!

* We made use of a long downtime (~1.5h) last night to empty target and
took one 50M event empty target run @ 150nA: run 11119.

* Either side of that, we took two low luminosity runs, 50M events each, at
7nA: runs 11117 and 11120.

* Valery produced a new trigger with PCAL + ECAL energy sum set to 300 MeV
threshold (v13_1). We took a 20M run with it (run 11123) and I asked Zhiwen
to cook it with high priority for monitoring. The rates are as follows:
    Total 23kHz (same as with 250MeV threshold)
    Electron trigger: 14.5kHz (vs 16kHz with 250 MeV threshold).

* Physics production running aside from that! We're back to 200M even runs,
40nA, our standard trigger (250MeV threshold on PCAL+ECAL).

* Yordanka produced monitoring histograms for the first few production runs
-- Valery's assessment of them is that we have electron purity > 70% and
the "muon" trigger purity is > 75%.

* Data mover issue has been resolved by the computing center.

Let's reconvene tomorrow when we will hopefully have results of today's
trigger test and can discuss our first look at the physics runs.

Thanks all and happy Sunday!
Daria
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