[Halld_src] [EXTERNAL] Re: [New Logentry] SRC accumulated statistics

[Eliezer Piasetzky]

Hi,

For SRC the relevant events are with large pmiss (let say pmiss>300 MeV/c)

To  estimate  SRC statistic we should (even online) try to estimate
how many QE pi- or rho- production events with Pmiss>300 MeV/c we have.
Counting triggers or meanfield (low pmiss) dominate events is not so
relevnt and migth even be misleading.

   best regards
     eli


On Sun, 21 Nov 2021, somov at jlab.org wrote:

>                                           SRC accumulated statistics
>
>  *  Edit
>  *  Delete
> 
> Lognumber 3947824. Submitted by somov on Sun, 11/21/2021 - 21:31.
> 
> Logbooks:
> HDLOG HDTRIGGER
> Entry Makers:
> somov
> 
> I put a summary of statistics accumulated at different run conditions to
> 
> https://halldweb.jlab.org/SRC/production_2021
> 
> (it's linked to the SRC run wiki page)
> 
> So far, we have been getting along pretty well (with a good accelerator efficiency)
> and completed about 57% of the experiment (based on the physics data sample
> collected).
> 
> We are currently taking data on LD target at 140 nA beam current, as planned. The
> total trigger rate is about 67 kHz and the live time is 96%.
> 
> 
>