sPHENIX is a new detector at RHIC.

["Huang, Jin" <jhuang AT bnl.gov>]

Hi Everyone

Congratulations to Charles on the new TPC line laser displays, which were conditionally approved for this meeting.

Change request:

• Megan: noting the run has a line laser only
• Jin: "T" in B=1.4T goes to the next line, solved by the next comment
• Cameron: Should we use φ, θ, and an upperscript degree? We figured this out for the HF plots, so I can send it to Charles.

• Here are some examples for getting the symbols https://github.com/sPHENIX-Collaboration/sPHENIXDisplayEventCache/blob/main/EvtDisplay_Xi-_53877_517356031205504.json

Further discussions

• Cameron: I'm trying to predict questions from an audience: “Why are the hits not a smooth line?” My guess is that it's not alignment but something intrinsic to how the laser works

• Charles/Jin: The track traverses through various orientations relative to the pad rows, which are displayed as the pad row pattern is illuminated by the laser track.

Megan: usefulness of the theta/phi information on the plot

• Jin: could be useful, denoting that we can control the line laser direction.

Megan: Why does one of the laser goes horizontal?

• Charles: 9S-laser has a low theta angle in this particular configuration.

Cheers

Jin

 

______________________________

 

Jin HUANG

 

Physicist, Ph.D.

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

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From: sphenix-l-request AT lists.bnl.gov <sphenix-l-request AT lists.bnl.gov> on behalf of Huang, Jin <jhuang AT bnl.gov>
Sent: Wednesday, May 21, 2025 1:01 PM
To: Sphenix L <sphenix-l AT lists.bnl.gov>
Subject: [[Sphenix-l] ] Performance plot approval shortly before shift change meeting today 3:15PM EDT

 

Hi Everyone

Please join a brief performance plot approval shortly before shift change meeting today. The topic is an event display recently made by Charles Hughes to show the first TPC line laser run, and it was proposed to show in the Run25 plenary talk by Rosi tomorrow.

• The approval session zoom and indico are the same as the shift change meeting  [https://indico.bnl.gov/event/27955 / Zoom  Link], starting at 3:15PM EDT 
• then we will continue with the nominal shift change meeting at 3:30PM EDT, 
• followed by JaeBeom Park's second rehearsal for AUM plenary talk at 4:15PM EDT [https://indico.bnl.gov/event/27923/ ]. 

Cheers

Jin

 

______________________________

 

Jin HUANG

 

Physicist, Ph.D.

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________