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[sphenix-sepd-l] EPD event plane determination

From: Ejiro Umaka <ejironaomiumaka AT gmail.com>
To: sphenix-sepd-l AT lists.bnl.gov, sphenix-bulk-l AT lists.bnl.gov
Cc: "Pinkenburg, Christopher" <pinkenbu AT bnl.gov>
Subject: [sphenix-sepd-l] EPD event plane determination
Date: Thu, 27 Apr 2023 11:14:58 -0400

Hi all,

I've been working on the event plane determination for the EPD (and other subsystems). Initially (~ 2 years ago) when we first looked at the EPD raw psi_2, we got a flat distribution, but the most recent simulation results were not. The only thing I can think of as to what changed between then and now is pile-up in the current simulations.

I proceeded to look at the phi -weighted psi_2 distributions and they are flat (attached)!

I'd like to discuss this further at the EPD/bulk meeting next week.

Best regards,

Ejiro

Attachment: epdpsi2_10kevents.pdf
Description: Adobe PDF document

[sphenix-sepd-l] EPD event plane determination, Ejiro Umaka, 04/27/2023
- Re: [sphenix-sepd-l] EPD event plane determination, pinkenburg, 04/27/2023
  - Re: [sphenix-sepd-l] EPD event plane determination, Ejiro Umaka, 04/27/2023
  - Re: [sphenix-sepd-l] [Sphenix-bulk-l] EPD event plane determination, pinkenburg, 04/27/2023
    - Re: [sphenix-sepd-l] [Sphenix-bulk-l] EPD event plane determination, Rosi Reed, 04/27/2023
      - Re: [sphenix-sepd-l] [Sphenix-bulk-l] EPD event plane determination, Ejiro Umaka, 04/27/2023