[Primexd] Data production

[Sean Dobbs]

Hi Sasha, Drew,

Thanks, that sounds reasonable to me.  I'll start on the modifications
that I mentioned - please let me know how things progress and we will
do what we can to help.

Cheers,
Sean

On Sat, Jul 20, 2019 at 12:06 PM Drew Smith <andrew.p.smith at duke.edu> wrote:
>
> I'm sorry, I should point out that the calibrations mentioned in my previous email are what needs to be for the CompCal reconstruction.
>
>
> -- Drew
>
> ________________________________
> From: Primexd <primexd-bounces at jlab.org> on behalf of Drew Smith <andrew.p.smith at duke.edu>
> Sent: Saturday, July 20, 2019 11:48:38 AM
> To: Alexander Somov <somov at jlab.org>; Sean Dobbs <sdobbs at fsu.edu>; primexd at jlab.org <primexd at jlab.org>
> Subject: Re: [Primexd] Data production
>
>
> Hi Sean,
>
>
> From my point of view, before calibrations can be finished we need to add a position correction (for both methods of calculating position) for the reconstructed showers. After that, it would be good to re-calibrate the gains, because I use Compton Scattering events to tune them. I don't want to underestimate how long this will take, but I will try to determine such a correction this week using data. However, it may be the case that we need to use MC to fine tune it.  After that, another pass of tuning the gain factors would be pretty quick.
>
>
> I'm not sure if there are any other items that people would like to mention, but after this I think the calibrations would be in a fairly good state for this past run period. Of course there are many other things that will need to be studied and characterized in further detail (like dependence on incident angle, differences between electrons/photons, reconstruction of particles other than electrons/photons, and the dependence of the resolution on position within the calorimeter, just to name a few).
>
>
> Best Regards,
>
> -- Drew
>
> ________________________________
> From: Primexd <primexd-bounces at jlab.org> on behalf of Alexander Somov <somov at jlab.org>
> Sent: Saturday, July 20, 2019 9:48:11 AM
> To: Sean Dobbs <sdobbs at fsu.edu>; primexd at jlab.org <primexd at jlab.org>
> Subject: Re: [Primexd] Data production
>
> Thanks Sean,
>
> It would be great if you can help to
> implement CCAL to the rest format.
>
> We'll work on skims needed for data
> analysis.
>
>
> Cheers,
>            Sasha ________________________________
> From: Sean Dobbs <sdobbs at fsu.edu>
> Sent: Friday, July 19, 2019 4:42:55 PM
> To: primexd at jlab.org <primexd at jlab.org>; Alexander Somov <somov at jlab.org>
> Subject: Data production
>
> Hi all,
>
> Sorry for not bringing this up at the Primex meeting - I got pulled
> away in the middle and didn't get back until it was over.
>
> There was one thing that I wanted to bring up:  in the Wednesday GlueX
> Analysis meeting, the question was asked when the Primex data would be
> ready for a first production pass to generate data in the standard
> reconstruction format.  My take on this was that
> 1. The calibrations have to converge to a (not necessarily final)
> state which everyone is happy with
> 2. Whatever skims would be helpful to generate for calibration and
> data analysis should be defined and implemented
>
> It would be good to have some clarity on where we stand with these two
> items and what needs to be accomplished to complete them.  If anyone
> else has some feedback on this subject, I'd be happy to hear it.
>
> Once Drew's new version of the CCAL reconstruction is merged in, there
> will be some minor changes to our REST format needed, which I can help
> with.  I'll think if any other changes need to go in.
>
> Cheers,
> Sean