sPHENIX HCal discussion

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

Hi Ejiro,

Very nice job!  Your presentation of this already at our Calo Calibrations mtg was appreciated too, I think we already got some comments there, so I don't know if there will be a formal approval procedure, but as convener of _a​_ relevant meeting for this, it would probably meet my approval once you've considered the items below.  

Comments:

The 2nd bullet on Slide 2 ("Hadrons traversing the HCALs shower

due to the plates ...") could (probably _should_) be improved maybe into a couple separate major bullets...my issues with it are 1) it kind of describes how all sampling calorimeters function [it be nicer to say something specific about our hcal] and 2) it's a little too maybe inaccurate, maybe too basic, maybe non-specific, in the language of "deposits energy into the tiles"  e.g. it also deposits energy into the absorbers too..so maybe sharpen these or just make some other points instead --like maybe other details of the parameters of the Hcal, maybe expand some of the points in the first bullet too --     Some alt suggestions: "Unique ["tilted Shashlik"|tilted absorber|...]  sampling design.  (sub bullet Extruded Polystyrene Scillintilating tiles" , "Kuraray Y11 Wavelenghth Shifting Fibers " .... "  "[tilt design leads to] Very high uniformity in phi response."  ... "Hammamatsu SiPM Readout For each Tile Summed 4(Inner Hcal) or 5(Outer Hcal) Tower-unit Signals" ...  somewhere around here you should definitely have something like these :  "Towre Etax Phi Segmetation 0.1x0.1"    and especially one of these:  "Tower units projective in Eta" since that's one of its strengths.  (adding another small plot that shows this might fill some more space too, an example is attached below)

Slide 3  2nd bullet  first "have" --> "has"

Slide 4  plots  formula look good in combo as discussed at our mtg... For the plots on the bottom 2/3rds of the slides, it would be a little better if the fit plots were on the left (how one C is derived for each calo), and then the tower distributions (C for all towers for each calo) on the right since that is the order they are obtained.

--Several places:   Am I missing the the lack of the bibliography associated with the [1], [2], ... citations? 

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

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

 

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From: sPHENIX-HCal-l <sphenix-hcal-l-bounces AT lists.bnl.gov> on behalf of Umaka, Ejiro N [PHYSA] via sPHENIX-HCal-l <sphenix-hcal-l AT lists.bnl.gov>
Sent: Thursday, March 31, 2022 11:27 PM
To: sphenix-hcal-l AT lists.bnl.gov <sphenix-hcal-l AT lists.bnl.gov>
Cc: sphenix-calibration-l AT lists.bnl.gov <sphenix-calibration-l AT lists.bnl.gov>
Subject: [Sphenix-hcal-l] QM2022 HCAL poster

 

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Dear all,

 

Please find attached a draft of HCAL poster.  Comments and suggestions will be highly appreciated.

 

Best regards,

Ejiro