[clas12_rgk] Fw: [EXTERNAL] rgk

[Viktor Mokeev]

Thank you very much Volker!  We will follow your advise.

   Best Regards,
                                Victor
________________________________
From: clas12_rgk <clas12_rgk-bounces at jlab.org> on behalf of burkert <burkert at jlab.org>
Sent: Thursday, April 30, 2020 9:05 AM
To: clas12_rgk at jlab.org <clas12_rgk at jlab.org>
Subject: Re: [clas12_rgk] Fw: [EXTERNAL] rgk

It is great to see that Anna now has the analysis tools to isolate the physics channel in simulated events.
Just one comment on the last slide. I shows MM(epX) with a peak at MM =pi0 mass, but Anna should first show MM(epgX) with a peak at  MM = 0.

A next step could be to include particle identification in the simulation and reconstruction. There are many protons in the CD where particle ID is limited to the lower momentum range and a high momentum proton may be misidentified as a K+ or a pi+ and is lost for the reaction in question.

Volker




On 4/30/20 6:50 AM, Viktor Mokeev wrote:
Dear Colleagues,

 Please find very interesting results from Anna. I decided to send them in advance because of huge amount of really needed slides. She advanced her analysis essentially by implementing the presentation framework similar to the developed by FX. The outcome I see:
-momentum dependent cuts  for isolation of pi^0p events are needed;
-analysis of the kinematics correlations in the ep---->e'p' gamma gamma reaction allow us to develop the set of cuts useful for isolation of pi^0p events in real measurements with the contribution from pi^0p and other open channels, and apparatus background;
-event selection (in toy world with pi^0p channel only) in ep--->e'p' \gamma+X
reaction increase the statistic more then factor of 10 in comparison with more exclusive ep--->e'p'\gamma\gamma +X selection. The problem Anna simulation is not able to address is the real background beneath exclusive peak in real world with all open exclusive channels.

Best Regards,
                                  Victor
________________________________
From: Анна Голубенко <3977412 at gmail.com><mailto:3977412 at gmail.com>
Sent: Thursday, April 30, 2020 2:00 AM
To: Viktor Mokeev <mokeev at jlab.org><mailto:mokeev at jlab.org>
Subject: [EXTERNAL] rgk

Виктор Иванович,

я попробовала повторить презентацию FX (несколько я все же не поняла).
Но получилось как-то.... много. Понимаю, что рассказывать все равно буду по сути, и на всем останавливаться совсем не нужно. Ну, в общем, посмотрите, мы тоже можем делать презентации с множеством графиков

А.



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