sPHENIX EMCal discussion

["Frantz, Justin" <frantz AT ohio.edu>]

Hi all,

 

A couple brief follow ups to our discussion Friday about the eta and pi0 calibrations:

 

- I finally posted to the wiki page as Anne has been requesting a couple of references I could find on the pi0 tower by tower calibrations. 

https://wiki.bnl.gov/sPHENIX/index.php/EMCAL#Calormeter_Data_Driven_Calibrations

They are not super detailed but are the only ones I could find.

 

-Also one addendum to our discussion on eta->2gamma stats above 20 GeV:  another point I forgot to bring up about Anne’s talk was, although we probably want  to stick to using peripheral events for the base EM scale calibration, for etas in the E ~20-30 GeV regime with even mild energy symmetry in the 2 photon decay, the effects of the underlying AuAu event are pretty tiny, e.g. there is almost zero extra combinatoric mass background.  Therefore for a targeted study like checking for possible very high energy depletion in the smaller 2023 Run, we should be able to also use all the central event eta statistics as well and thus something like 10 x more stats to check this, in addition possibly to using merged pi0’s somehow.

 

-Justin

----------------------------------------------
Justin Frantz, Ph. D.  he

RHIC UEC/Diversity Working Group

Brookhaven National Lab, sPHENIX Experiment

Associate Professor
Ohio University Dept. Of Physics and Astronomy  
frantz AT ohio.edu  
646-228-2539 

PERSONAL ZOOM MEETING:  369-910-7530   Password:  1 

https://us02web.zoom.us/j/3699107530?pwd=TkZLeU1MY2d5eUpqeTJ5WUJTRHlVUT09

 

From: Sickles, Anne M [mailto:sickles AT illinois.edu]
Sent: Thursday, June 10, 2021 12:05 PM
To: Craig Woody <woody AT bnl.gov>
Cc: Stoll, Sean <stoll AT bnl.gov>; Frantz, Justin <frantz AT ohio.edu>
Subject: Re: [Sphenix-emcal-l] EMCAL Local and Calibration Meeting, Tomorrow, June 11th, starting at 10:30 am EDT

 

Hi,

 

I had a couple questions about the statistics for calibrating to high pt in the 2023 data. I’ve attached some draft slides here but I would like to discuss them tomorrow if there is time. Any comments or questions before the meeting would be welcome.

 

Best,

Anne

 

 

---------------------------------------------------------

Anne Sickles

Associate Professor

University of Illinois at Urbana Champaign

sickles AT illinois.edu

---------------------------------------------------------

 

 

 

On Jun 10, 2021, at 9:24 AM, Craig Woody <woody AT bnl.gov> wrote:

 

Dear All,
  Just a reminder that we will have our Local/Calibration EMCAL meeting tomorrow, Friday June 11th, starting at 10:30 am EDT. The Indico link is: https://indico.bnl.gov/event/11873/  We will again talk about the status of sector assembly and testing at BNL but will also discuss other general calibration issues if anyone wishes to bring them up. I will be away on vacation tomorrow so Sean will be running the meeting. All are welcome to attend.

Cheers,
Craig

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