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["Fisyak, Yuri V" <fisyak AT bnl.gov>]

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

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