sPHENIX EMCal discussion

[Stefan Bathe <stefan.bathe AT baruch.cuny.edu>]

Hi John, Craig, and All,

Just to follow up on the T dependence discussion regarding the difference 
between a T coefficient in the 3 % range and the ~1.5 % you mentioned towards 
the end of the meeting:  this must depend on the reference temperature.

If I take the fit parameters from your slides, John (March 12, 2021, EMCal 
meeting):

S(T) = -25.57*T + 1483

and calculate S(26) and S(20) from that, and then insert that into Hanpu’s 
formula from today’s meeting:  S(T) = S(26)*(1 - alpha(T - 26)) for T = 20, I 
get:

alpha = 0.03125.

Regards,
Stefan 
- 
---------------------------------------------------------------------------------
Stefan Bathe
Professor of Physics
Baruch College, CUNY
and RIKEN Visiting Scientist

Baruch:                                     BNL:
17 Lexington Ave                      Bldg. 510
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phone 646-660-6272                phone 631-344-8490
----------------------------------------------------------------------------------



> On Jan 19, 2022, at 02:29, Frantz, Justin via sPHENIX-software-l 
> <sphenix-software-l AT lists.bnl.gov> wrote:
> 
> Hello,
> 
> Reminder our first Calo Calibrations meeting will later today at 1pm.  So 
> far I am on the agenda, unless Megan had similar plans, I will be leading a 
> discussion on an intro to the meeting group, as well as some of my own 
> proposals for updating the general reco framework for the calos.  I would 
> also like to give another whole presentation on the tower slope method 
> updates.  It would be great if some of the folks leading some of the calo 
> calibrations/reco efforts  (e.g. LED's, Cosmics, Pulse fitting beyond's 
> Maxims latest update, etc.) might be ready to give at least a verbal 
> update--and let Megan and I know if you would like to be put on the agenda.
> 
> -Justin
> 
> Agenda link: 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__indico.bnl.gov_event_14421_&d=DwIFAw&c=dTXc8cCP8suVpClwB1HRHQACHN4UFMgL7MtSjCbKyts&r=VpzLtnjcGB03vfJuG_p478bcDf7zDOFn2OeUM-jusdY&m=K98nquVk5pj-VJK_QgNA7Xf--tHe0ney1NlxoiwSFqU&s=oVB8Xx_6Tt0p8JCNmkDQcSNWxeKQtG-LGvZRdFd3XMQ&e=
>  
> 
> 
> Zoom info:  
> Topic: Calorimeter Calibrations Meeting  (Wed)
> Time: Jan 19, 2022 1 PM Eastern Time (US and Canada)
> 
> Join Zoom Meeting
> https://urldefense.com/v3/__https://us02web.zoom.us/j/83101077810?pwd=YldkK200RERxTmlINFh5T3pnbHRxQT09__;!!P4SdNyxKAPE!XA4oSvY23CVUJjc7HvctfHru_SIn9JlE8zNiSidEBBw4O-hXlyh5qpjJGPsje348dtHY4n8T7DxnCQA$
>  
> 
> Meeting ID: 831 0107 7810
> Passcode: 1008
> 
> 
> 
> ---------------------------------------------- 
> 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   
> 
> ________________________________________
> From: Frantz, Justin
> Sent: Sunday, January 16, 2022 11:58 AM
> To: sphenix-hcal-l AT lists.bnl.gov; sphenix-emcal-l AT lists.bnl.gov; 
> sphenix-calibration-l AT lists.bnl.gov; sphenix-software-l AT lists.bnl.gov; 
> sphenix-l AT lists.bnl.gov
> Subject: Calorimeter Calibration mtgs :  alternating Wed's 1pm (this wk) & 
> Thursdays 4pm.
> 
> Hi all,
> 
> As advertised at the collaboration mtg, we will be starting a new series of 
> biweekly/weekly meetings for Calorimeter Calibrations.   The focus will be 
> any calibrations-related calorimeter software, but we plan to also discuss 
> any calorimeter calibrations developments such as the LED systems.   Megan 
> Connors and I (Justin Frantz) will convene these meetings.   The purpose is 
> to try to unify as much as possible the approaches for calorimeter 
> calibrations and software for both the Hcals and the EMcal.    The polls 
> indicated it was complicated to schedule to get everyone needed all 
> together at one common time.    So we have decided on two different times 
> that will alternate which allowed everyone of the many who filled the poll 
> (thanks!) to attend at least one of the two times.
> 
> The "Main" meeting time will be biweekly held every other ***WEDNESDAY AT 
> 1-3 pm (Eastern US time) ****   We will have the first of these meetings 
> _THIS COMING WEEK_ (Wed. January 19, 2022)  Please plan on attending now, 
> and let Megan and I know if you have anything  to present.   Agenda and 
> zoom links/info will come in a separate email.
> 
> The 2nd mtg which will be called the "Technical"  meeting  (mainly just to 
> differentiate it) will be held  *** THURSDAYS  4-5pm  (Eastern US time)**** 
> also biweekly, but  in the alternating weeks when the "Main" meeting does 
> not occur--thus the first meeting of this type will be next week 1/27/22.
> 
> Please mark your weekly calendars and hope to see everyone interested in 
> calorimeter calibrations at these meetings!
> 
> -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 MEETI
> 
> _______________________________________________
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