sPHENIX EMCal discussion

[Raghav Kunnawalkam Elayavalli <kunnawalkamraghav AT gmail.com>]

Hi Sijan,

Thanks for preparing the material and overall I like your slides. I agree with Dennis that it would be good to have the final say on your calib plots from the calo group on monday. 

Also I’ll reiterate the general comments on the plotting style and the macros, legend sizes etc… try to think about it from the point of view of your audience.. 

Please add your name (uni name) to each of the slides. 

I will focus on your slides here and try to not repeat Dennis’s comments. Also make sure that when we discuss your slides on wednesday we have the updated slides :) 

Slide 1 - I know it’s easy to write pi0 but can we please write it as the symbol \pi^0. Same for \eta? For all the slides and everywhere please… 

Slide 4 - for a presentation, the figures are usually better for your audience as opposed to text because they are listening to you talk yeah? So you have nice cartoons here but they are SO SMALL and your text is huge and you don’t need a bunch of text in there as well. Also your text and your flowchart are so similar so you don’t need either. 

Slide 5 - for your audience at DNP, they don’t know what eta bin is… can we atleast write something to say eta = 0 is in the middle and whats the value of eta at the edges? 

Your plot on the right - I have no idea whats the average z-axis.. is it *very* close to 1? 

Slide 6 - the inset is completely not visible.. 

Slide 7 - if I just take slide 7 here - I actually have no idea whats the difference between the left/right… as an audience member it will be very hard to focus on the difference so please make it into one plot. If you want it as two - then you need to emphasize the story in the two plots. Make it distinct, make it larger. 

Slide 9 - the text in the plots needs to be more professional. 

Slide 10 - yeah this needs way more info clarification like some run numbers and let’s discuss this. 

Slide 11 - you definitely need to make sure that the histogram is divided by the bin width! And probably only show one pT bin. 

And pT - p_T. 

Cheers
Rithya 


**************************************
First Name - Raghav (Rithya)
Last Name - Kunnawalkam Elayavalli

Pronouns - they/them
email - raghav.ke AT vanderbilt.edu 
website - https://www.raghavke.me 

RHIC/AGS UEC member
Assistant Professor of Physics

Ruff Fant Dean's Faculty Fellow 
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Physics & Astronomy Department
Vanderbilt University 
Nashville, TN 37235-1807
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On Sep 29, 2024, at 11:09 PM, Perepelitsa, Dennis <dvp AT bnl.gov> wrote:

Hi Sijan,

Thanks for the nice slides and your hard work on this topic.

Given the content, I would propose that you present this in the Calo Calib since they may have some feedback on the calibration-specific part at the beginning, but then have the official WiP approval in the JS TG on Wednesday.

By the way, in the future, can I ask you to make this an Invenio “request” rather than “record” so we can post comments there?

In general I think the plots need some significant work with the format and labelling. Some axis labels are partially cut off, axis titles are added by hand with different fonts, etc.

For all plots, can I confirm that you are using the sPHENIX plotting style here: https://wiki.sphenix.bnl.gov/index.php?title=Plot_template 

Can you use a consistent labelling for “etabins” vs. “ieta”, etc. How about “#eta bin index”, “#phi bin index" ?

Here are some more slide by slide comments:

Slide 3: the left plot needs better labelling (axes, what is the sample, etc.). For the right plot, can you give the HIJING species and centrality range? 

Slide 4: what is the plot on the upper left? Is that a cartoon or does it need some sPHENIX labelling?

Slide 5: these need data/simulation/etc. labelling

Slide 6: the left plot looks “stretched out” somehow - can you check? For the right plot, the pi0 mass values for many towers are as low as ~0.12 or ~0.10 GeV (blue-green). Is that really right?

Slide 7: the “Foreground” distributions left and right are different - should they be? I think you should change the “Background” label since the left plot is “Combinatorial background only” (right?) while the right plot is “Combinatorial and correlated background” (right?). Also why not have this just be one plot showing both background types? In general, this would be good to discuss in a meeting.

Slide 8: again, I would try to improve the plotting. “pairpT (GeV/c)” -> “#it{p}_{T}^{#gamma#gamma} [GeV]”, etc. The plot on the right - is that from sPHENIX simulation or data? It should be labelled.

Slide 9: I like the labelling of the bottom plots - can we make the upper right more like this? (“Inv Mass” -> “M_{#gamma#gamma}”, etc.). For the top plot, I would remove the “stats” box and add legends for the two colors. And again, if this is data or simulation, that should be labelled.

Slide 10: for the bottom right plot, I would put “#eta #to #gamma#gamma” as a label somewhere. Can I suggest “Uncorrected yield” and “Uncorrected #it{p}_{T}^{#gamma#gamma}” as axis labels. I would make it clear that this is an example extraction of yields in some particular pT range (3-8 GeV only) and in some particular sample of p+p data (do we know how big?).

Slide 11: these plots look grainy to me, can you double check that you have the original high-resolution PDF? (And again I suggest “Invariant Mass” -> m_gammagamma) We should discuss in the JS TG with what caveats we want to show these, since they are moving in the direction of a yield / cross-section extraction. For our internal book-keeping, can you state what approximate luminosity fraction these are?

Slide 11 bottom right: there is a funny effect where the changing bin width makes the yield change in odd ways — I would just make it dN/dpT (with updated labelling)

Have fun at DNP,

Dennis

On Sep 26, 2024, at 10:35 PM, Regmi, Sijan <sr276419 AT ohio.edu> wrote:

Hi Everyone, 

 

Shortly after I upload, I realized it was the different than I intend to upload. Please find the link to newer/correct version.

https://sphenix-invenio.sdcc.bnl.gov/records/ry775-9r746

 

Sorry about that.

Sijan Regmi

 

From: sphenix-jet-structure-l-request AT lists.bnl.gov <sphenix-jet-structure-l-request AT lists.bnl.gov> on behalf of Regmi, Sijan <sr276419 AT ohio.edu>
Date: Thursday, September 26, 2024 at 11:50 PM
To: sphenix-jet-structure-l AT lists.bnl.gov <sphenix-jet-structure-l AT lists.bnl.gov>
Subject: [External] [[Sphenix-jet-structure-l] ] Sijan_Regmi_DNP_Slides

Use caution with links and attachments.

 

Hi Everyone,

 

Please find my DNP slides here in the following link :

 

“https://sphenix-invenio.sdcc.bnl.gov/records/fqavn-cyt39”  

 

Regards,

Sijan Regmi

Dennis V. Perepelitsa
Associate Professor, Physics Department
University of Colorado Boulder