[Rgc_analysis] [EXTERNAL] Re: [Rgc] RGC-analysis meeting tomorrow

Fri Feb 21 10:08:39 EST 2025

Dear all,

I am still trying to understand why some of the plots shown during the (very successful!) calibration review show a worse resolution for the “sqlite” version of the cooking vs. the “CCDB” version. It would be helpful if someone could check whether Derek’s scripts are working as intended - resulting in sqlite having the exact same calibration constants as CCDB for EVERYTHING other than the raster and beam offset constants? (Yes, the beam offset constants should be set to zero, so that is correct). I am also hoping to get a response from Noemie regarding the exact cuts used in the elastic analysis.

Samy’s response (also quoted below) does not indicate any cuts on vertex variables, so the slight difference in vertex reconstruction doesn’t seem to have played any role. For the inbending comparison, the difference between sqlite and CCDB seems small, but I am still puzzled about the Delta-phi resolution, which seems worse for sqlite. (However, this may be partially a “Trompe-l'œil” because the peak is a little lower - if one were to re-normalize both distributions to the same max peak height, the difference would probably be truly minimal). In any case, for outbending the difference is more significant - sqlite is clearly worse for Delta-phi, while the vertex distributions still look better for both electrons and protons, at least for Vy (Vx not shown). Samy, would it be possible to plot Delta-vx and Delta-vy (difference between p and e), again comparing CCDB and sqlite for both inbending and outbending? Noëmie, would you be able to do the same for elastic events?

If you have time this afternoon and would like to discuss this in a meeting, I could set something up for 1:00 p.m. (until at most 3 p.m.) today. Please let me know your preferences! Otherwise, I would suggest we make a final decision on Tuesday based on all information we can collect until then (please send as soon as you have it).

Thanks - Sebastian

————

Hi Sebastian,

Please find attached a document detailing the event selection, fiducial and exclusivity cuts I use. I've selected the relevant pages from the release note I'm writing, but the QADB selection cuts of course do not apply to the spring23 test runs.

The plots with the separate inbending/outbending and the vertex plots are in the slides attached. The details on the paths ect.. used are in the email I sent on Tuesday.

Best,

Samy

On 20/02/2025 17:06, Sebastian Kuhn wrote:
Hi Samy,

thanks for your response. I was also asking explicitly WHAT cuts you are using

On Feb 20, 2025, at 10:26, Holmberg, Derek <deholmberg at wm.edu> wrote:

Hi Silvia,

To generate the latest version of the sqlite, I used the following script:
/group/clas12/packages/local/bin/clas12-ccdb-mysql2sqlite.py  ~/work/My_Sqlite/latest.sqlite

This script grabs the latest snapshot from ccdb, so the one I grabbed for the latest raster stuff was probably taken on January 29th.

Just to make sure that I didn't make any other errors, the shell script that I used to add my raster constants can be found at
/w/hallb-scshelf2102/clas12/holmberg/My_Sqlite/Add_ADC_to_Position_Data_Sp23.sh

In this script, I set the beam-offset to zero for all runs:
/group/clas12/bin/ccdb add /geometry/beam/position -v rgc_spring2023 -r 17479-99999 derek_zero_beam_position_sp23.txt

Then, within a loop, I add my raster constants to the sqlite file:
/group/clas12/bin/ccdb add /calibration/raster/adc_to_position -v rgc_spring2023 -r ${j}-${j} Text_Files/Run_${j}_ADC_to_Position.txt

Could there be an issue with setting the beam offsets to zero? I thought that setting the offset to zero would be necessary since the detached vertex tracking method is agnostic to any offset.

Please let me know if there's anything else I can help with!

Sincerely,
Derek
________________________________
From: silvia <silvia at jlab.org<mailto:silvia at jlab.org>>
Sent: Thursday, February 20, 2025 10:11 AM
To: Sebastian Kuhn <kuhn at jlab.org<mailto:kuhn at jlab.org>>
Cc: Holmberg, Derek <deholmberg at wm.edu<mailto:deholmberg at wm.edu>>; pilleux <pilleux at jlab.org<mailto:pilleux at jlab.org>>; Samy Polcher Rafael <spolcher at jlab.org<mailto:spolcher at jlab.org>>
Subject: Re: [Rgc_analysis] [EXTERNAL] Re: [Rgc] RGC-analysis meeting tomorrow

Hello all,
Derek, did you have a chance to double-check your CCDB copying
procedures, to address Sebastian's question?
For the rest, I can say that CJ was for sure the same for the two
cookings. Noemie and Samy can reply to the other questions.
Best regards,
Silvia

On 2025-02-19 10:01, Sebastian Kuhn wrote:
> Dear all,
>
> coming back to the contradictory results for the comparison between
> sqlite and CCDB (improved vertex resolution, worse phi resolution for
> elastic and pDVCS), I was wondering whether we are 100% sure that
> everything else was exactly the same for both versions other than the
> raster calibration constants. I remember last time we had this issue,
> we found that there was something else that had changed between CCDB
> and sqlite (or something that hadn’t been completely copied over to
> sqlite from CCDB) which confounded the effect of ONLY the raster
> constants.
>
> In addition, it would be helpful to get as much detail as possible for
> all conditions for both the elastic and the pDVCS analysis using both
> versions:
> - COATJAVA version (same?)
> - any and all cuts? (vertex, coincidence, fiducial,…)
> - any background subtractions?
>
> I am particularly puzzled why Delta-phi for elastics seems better for
> CCDB than for sqlite - to first order, there should be NO effect at
> all from the vertex, and if anything a tighter vertex distribution
> should give an improvement.
>
> I think we should convince ourselves that this improvement is a real
> effect before we decide to use CCDB instead of sqlite for the Winter
> cook.
>
> - Sebastian
>
>> On Feb 18, 2025, at 14:50, Holmberg, Derek via Rgc_analysis
>> <rgc_analysis at jlab.org<mailto:rgc_analysis at jlab.org>> wrote:
>>
>> Hi All,
>>
>> I finished some updated slides for the raster calibration review. I
>> uploaded the PowerPoint presentation (as a .pptx file) to the wiki
>> for today's meeting:
>> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fclasweb.jlab.org%2Fwiki%2Findex.php%2FRGC_Feb18&data=05%7C02%7Cdeholmberg%40wm.edu%7C1037694749364a7bf38108dd51c0cea4%7Cb93cbc3e661d40588693a897b924b8d7%7C0%7C0%7C638756610722463341%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=Cv9p6EKcgmU3FIN0VQgmof%2B%2F7fJ8U9FZTo7NXKrI5Qg%3D&reserved=0<https://clasweb.jlab.org/wiki/index.php/RGC_Feb18>
>>
>> Since the recooked runs were carbon and NH3, I made plots for one
>> carbon (17485) and one NH3 (17577) run. I used the sidisdvcs trains
>> for my plots, with each coming from the following directories:
>>
>> Sqlite:
>>
> /volatile/clas12/rg-c/production/dst/11.1.0_02_04_25_dst_sqlite/dst/train/sidisdvcs/
>>
>> CCDB:
>>
> /volatile/clas12/rg-c/production/dst/11.1.0_01_24_25_dst2/dst/train/sidisdvcs/
>>
>>
>> I included plots of the vx, vy, and vz distributions for FD
>> electrons and CD pi+ as well as plots of the polar and azimuthal
>> angular distributions of each particle. I also included some plots
>> of the angle between the pi+ and electron tracks and the delta_Vz
>> distribution for both sqlite and ccdb.
>>
>> Please let me know if there are any issues with the formatting or
>> other things that need to be plotted; if you're copying things from
>> my slides, make sure to copy and paste the entire slide since I put
>> some extra objects in the slides for the "preliminary" watermarks as
>> well as to cover up some mislabeled axes (whoops!).
>>
>> Sincerely,
>> Derek Holmberg
>>
>> -------------------------
>>
>> From: Rgc <rgc-bounces at jlab.org<mailto:rgc-bounces at jlab.org>> on behalf of Samy Polcher Rafael
>> via Rgc <rgc at jlab.org<mailto:rgc at jlab.org>>
>> Sent: Tuesday, February 18, 2025 1:39 PM
>> To: silvia <silvia at jlab.org<mailto:silvia at jlab.org>>; Rgc <rgc at jlab.org<mailto:rgc at jlab.org>>; Rgc Analysis
>> <rgc_analysis at jlab.org<mailto:rgc_analysis at jlab.org>>
>> Subject: Re: [Rgc] [Rgc_analysis] RGC-analysis meeting tomorrow
>>
>> Dear all,
>>
>> I have updated the slides from last week's meeting to add the
>> electron
>> and proton Vx, Vy, Vz distributions for the ccdb and sqlite
>> versions.
>> The .odp version can be found here
>>
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fclasweb.jlab.org%2Fwiki%2Findex.php%2FFile%3ASpring23_pDVCS.odp&data=05%7C02%7Cdeholmberg%40wm.edu%7C1037694749364a7bf38108dd51c0cea4%7Cb93cbc3e661d40588693a897b924b8d7%7C0%7C0%7C638756610722492053%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=cbYlud3osZ0FFZgJm%2FXWaoCwrwJUgTWFjlvRYBiHLfg%3D&reserved=0<https://clasweb.jlab.org/wiki/index.php/File:Spring23_pDVCS.odp>
>> [1] and a
>> pdf version is attached.
>>
>> I have re-run on the files in the following directories to double
>> check:
>>
>> - ccdb:
>> /volatile/clas12/rg-c/production/dst/11.1.0_01_24_25_dst2/dst/train/
>>
>> - sqlite:
>>
> /volatile/clas12/rg-c/production/dst/11.1.0_02_04_25_dst_sqlite/dst/train/
>>
>> On the vertex distributions the only significant difference I
>> noticed is
>> a small shift on the electron and proton Vy of the sqlite compared
>> to ccdb.
>>
>> I then tried to separate inbending and outbending runs and it shows
>> that
>> most of the difference between the two versions is coming from
>> outbending runs. The exclusivity and vertex variables in inbending
>> are i
>> think compatible given the statistics available.
>>
>> Best,
>>
>> Samy
>>
>> On 17/02/2025 22:32, silvia via Rgc_analysis wrote:
>>> Dear all,
>>> we'll have our RGC-analysis meeting tomorrow, Tuesday, at 8:30AM
>> JLab
>>> time, zoom link:
>>
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>> [2] , wiki
>>> page:
>>
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fclasweb.jlab.org%2Fwiki%2Findex.php%2FRGC_Feb18&data=05%7C02%7Cdeholmberg%40wm.edu%7C1037694749364a7bf38108dd51c0cea4%7Cb93cbc3e661d40588693a897b924b8d7%7C0%7C0%7C638756610722530199%7CUnknown%7CTWFpbGZsb3d8eyJFbXB0eU1hcGkiOnRydWUsIlYiOiIwLjAuMDAwMCIsIlAiOiJXaW4zMiIsIkFOIjoiTWFpbCIsIldUIjoyfQ%3D%3D%7C0%7C%7C%7C&sdata=yHbIqpIx8nNrmg5AYPhDVI1pTUgWhJvnqx%2BnYDnGjuY%3D&reserved=0<https://clasweb.jlab.org/wiki/index.php/RGC_Feb18>
>> [3]
>>> Please let me know if you plan to present something.
>>> Best regards,
>>> Silvia
>>> _______________________________________________
>>> Rgc_analysis mailing list
>>> Rgc_analysis at jlab.org<mailto:Rgc_analysis at jlab.org>
>>>
>>
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