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sphenix-cold-qcd-l - Re: [[Sphenix-cold-qcd-l] ] ZDC position plans and extra ZDCNS special runs

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Subject: sPHENIX cold QCD topical group

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Chronological Thread  
  • From: Ejiro Umaka <ejironaomiumaka AT gmail.com>
  • To: Itaru Nakagawa <itaru AT riken.jp>
  • Cc: sphenix-cold-qcd-l AT lists.bnl.gov
  • Subject: Re: [[Sphenix-cold-qcd-l] ] ZDC position plans and extra ZDCNS special runs
  • Date: Wed, 17 Jul 2024 08:47:59 -0400

display <filename> usually works.

On Wed, Jul 17, 2024 at 08:46 Itaru Nakagawa <itaru AT riken.jp> wrote:

Hi Vincent,


 Thanks for quick feedback. Can anyone tell me which pdf viewer command is available in the rcas machine?


-itaru



On 2024/07/16 8:41, Vincent Andrieux wrote:
Hello,

Results for 48445 and 48447 are available in:
/sphenix/user/vandrieux/LocalPolarimetry/Histograms/4844{5,7}/
Specific results related to asymmetries are attached.

I have to reprocess 48446, as I have a misalignment right from the beginning (which I use as reference).

In general, those runs looks good at least in the current state of the analysis.

Best regards,

Vincent

Hello  ZDC peoples (cc cold QCD),

After getting multiple inputs / viewpoints, I have decided that we will not move the ZDCs from their current positions.     We need our focus of experts to be in many other areas (including  TPC isobutane, etc), and leaving our luminosity counters as they are is a simplifying effort.

I know there may  be some concerns if the polarization is not vertical, but there are many reasons to believe this is not the case --  and likely not possible.     However, since we had a situation where the EMCal was unavailable last night, I instructed the shift crew to take a set of ZDCNS triggered runs.     It would be great if people can check these high statistics runs for vertical polarization and report at one of the upcoming SCM.

Run 48445, 48446, 48447.

Screenshot 2024-07-16 at 4.27.23 PM.png

Sincerely,

Jamie


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|| James L. Nagle   
|| Professor of Physics, University of Colorado Boulder
|| EMAIL:   jamie.nagle AT colorado.edu
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