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  • From: jwebb <jwebb AT bnl.gov>
  • To: star-scmgt-l AT lists.bnl.gov
  • Cc: Yuri Fisyak <fisyak AT bnl.gov>, "Witt, Richard CIV USNA Annapolis" <witt AT usna.edu>, Star-tpc L <Star-tpc-l AT lists.bnl.gov>
  • Subject: Re: [[Star-tpc-l] ] [[Star-scmgt-l] ] Approval Status // Re: Status of PR for New Alignment Library Code
  • Date: Mon, 16 Sep 2024 10:39:20 -0400

Hi Frank, Yuri,

The StEvent review still needs to be addressed.

1. The ClassDef macro's index should be incremented by 1 compared w/ the last version.
2. The GetPath function is not used anywhere and should be removed.

Jason

On 2024-09-14 16:22, Frank Geurts wrote:
Hi Yuri, All -

Thank you for clarifying. This was not particularly clear from your
“ignored” comment.

With this email (cc: TPC and S&C management group), I want to formally
ask the TPC experts and S&C experts for the green light, or whether
there are any fundamental issues that need to be addressed before we
move to the creation of a dedicated library so that we can start
calibrations and production of FXT no later than next week.

Thanks,

-Frank

On Sep 13, 2024, at 10:50 AM, Fisyak, Yuri V <fisyak AT bnl.gov>
wrote:

Hi Frank, thank you for explanation. Yes, it is true. I have removed
“OSectorAlign” because it does compete with corrections coming
from (new) Alignment2024.

Yuri
Fisyak

STAR Phone: +1 631 344
3913
Brookhaven National Laboratory Fax: +1 631 344 4206
510A/1-161
http://www.star.bnl.gov/~fisyak E-mail: fisyak AT bnl.gov

From: Frank Geurts <geurts AT rice.edu>
Date: Friday, September 13, 2024 at 11:40 AM
To: Fisyak, Yuri V <fisyak AT bnl.gov>
Cc: Witt, Richard CIV USNA Annapolis <witt AT usna.edu>, Star-tpc L
<Star-tpc-l AT lists.bnl.gov>
Subject: Re: [[Star-tpc-l] ] Status of PR for New Alignment Library
Code

Hi Yuri,

I am referring to these particular comment that was made in the PR
and which appears to indicate that the CorrZ option removes the
OSectorAlign chain option that implements a TPC distortion
correction. That may be unintentional, but should be corrected
unless there is an explanation.

What may be confusing is that it doesn't explicitly pop up in the PR
as a change, but for CorrX, CorrY this chain option is included,
while for the new CorrZ it is explicitly removed (see line 1142 of
StRoot/StBFChain/BigFullChain.h)

-Frank


________________________________________________________________________
Frank Geurts (he/him)
Professor of Physics & Astronomy • Rice University, Houston TX
T.W. Bonner Nucl. Lab. • Dept. of Physics & Astronomy
office 713-348-5314 • web

https://urldefense.com/v3/__http://heavyions.rice.edu__;!!P4SdNyxKAPE!BKee6RyFZCJ1Vw7GZV33HXvl3T2FtdUReSYry6FZZIDJqnNP9dBj2zEbAqK0tWqW02WMWDwNsFrMBWo$
[1]

________________________________________________________________________

On Sep 12, 2024, at 7:34 PM, Fisyak, Yuri V <fisyak AT bnl.gov>
wrote:

Hi Frank, can you more specific on your question ? I did not
remove anything.
In

https://drupal.star.bnl.gov/STAR/system/files/TPC24c.Export.Mini_.pdf
I have not found a statement matching to your question.
I have discuss alignment schema on the management meeting

https://drupal.star.bnl.gov/STAR/system/files/Tpc%20Alignment%202024.pdf
and there are some references in this talk.
Mathias in his presentation on the last analysis meeting

(https://drupal.star.bnl.gov/STAR/system/files/AnalysisMeetingMathiasLabonte.pdf)
on Slide 18
made a statement that the electric field direction is sector
depended. This is the new alignment schema.
Yuri
Fisyak

STAR Phone: +1 631 344
3913
Brookhaven National Laboratory Fax: +1 631 344 4206
510A/1-161
http://www.star.bnl.gov/~fisyak E-mail: fisyak AT bnl.gov
From: Frank Geurts <geurts AT rice.edu>
Date: Thursday, September 12, 2024 at 7:44 PM
To: Witt, Richard CIV USNA Annapolis <witt AT usna.edu>, Fisyak, Yuri
V <fisyak AT bnl.gov>
Cc: Star-tpc L <Star-tpc-l AT lists.bnl.gov>
Subject: Re: [[Star-tpc-l] ] Status of PR for New Alignment
Library Code
Thank you Richard.
I have one specific question to Yuri about the removal of the TPC
distortion scheme (addressing E-field distortions caused by
misaligned TPC sectors). From the PDF file that accompanied your PR,
it is not clear why this has been removed. Can you explain?
-Frank


On Sep 12, 2024, at 12:00 PM, Richard Witt (via star-tpc-l
Mailing List) <star-tpc-l AT lists.bnl.gov> wrote:
Dear All,
In response to a request from Frank at today’s TPC meeting,
here is a short summary of the status of the ongoing work to
incorporate the new TPC alignment for the FXT production.
== The next step toward production for the FXT is the processing
of a sample for dE/dx calibration.
== A new library, incorporating the new alignment has been
produced.
== The S&C group must approve that library before production of
the calibration sample can proceed.
== The S&C group needs approval of the changes made in response
to the current pull request associated with the new alignment code
before they can approve the the library for use in the calibration
production.
== Due to the number of comments submitted on the PR, it is
unclear to the TPC group what further work is needed to receive such
approval or even what form that approval takes since the code will
not be merged when the PR is resolved (to avoid undesired effects in
producing older data sets).
== The TPC group, therefore, requests a path to approval of the
changes made for the PR be defined so we can proceed with requesting
S&C approval and subsequently produce a dE/dx calibration sample
using the new library.
Best Regards,
Richard
Sent from my iPad
--
"Education is the most powerful weapon which you can use to change
the world."

--Nelson Mandela


~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~
Richard Witt, Professor of Physics Phone (USNA): 410-293-6675
United States Naval Academy Email: witt AT usna.edu

~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~~~***~



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