sPHENIX is a new detector at RHIC.

["Sickles, Anne M" <sickles AT illinois.edu>]

Hi HIdeki,

Thank you for the very nice proceedings and for posting them in a timely manner.  Please find some comments below.

Best,

Anne

abstract: here please mention that sPHENIX is at RHIC and that the observables listed are to be measured in Au-Au collisions to understand the QGP (cold QCD is already mentioned)

introduction

line 16: include a reference to a review article for the QGP

line 19: suggest "understand the inner workings of the QGP via measurements of hard probes in heavy-ion collisions at RHIC"

line 21-24: in place of this paragraph, I suggest discussing the fact that the detector is nearly completion and will have it's first data in 2023.

line 25: I suggest swapping Section 2 (sPHENIX Detector) with Section 3 (which I suggest renaming to sPHENIX Physics) as that will give the reader more context to understand the design of the detector

line 27: "full delivered luminosity of RHIC"

line 33/34: The sPHENIX detector will allow for full, unbiased jet reconstruction, b-jet tagging, and measurements of the three upsilon states separating in both heavy-ion and pp collisions.

section 2.1

I suggest combining the short paragraphs into a single longer paragraph to improve the flow & adding a plot of the tracking performance to support the discussion.

section 2.2

here you might leave the discussion of the various resolutions to the previously published technical papers and note that the EMCal provides the electron identification for the upsilons and the photon measurements and that the entire calorimeter system has sufficient resolution for our jet studies

section 2.3: for the MBD/sEPD discussion, I would condense it by removing the number of channels

section 2.4: the text should be clear that we will take a very large number of MB AuAu events including both the tracker & the calorimeter; the streaming readout improves the track-only measurements for pA & pp collisions

line 81: start by discussing the physics program (suggest quoting from the long range plan). Then discuss how we need to commission the detector, and accumulate luminosity for both the AuAu & reference pp data to achieve these goals. The three year run plan outlines the data needed to achieve the physics goals.

line 83: I would remove the EIC reference.

section 3.1:

I would include the plot that shows the number of jets/photons/etc we expect from the AuAu running (even if it means you have to remove a projection plot). I think the main point is that we will have a comprehensive jet program. The projections are examples of what we are able to do, but not the entire scope of our measurements.

line 93: If you want to discuss the "dramatic difference" between RHIC and LHC you should do it in the context of specific observables

line 107: "Upsilon" -> "upsilon"

line 111: I think it would be good to highlight the precision measurements of the three separated states at RHIC as opposed to "discover the 3S suppression at RHIC"

section 3.3: since this is about energy loss, I would move it before section 3.2 to tie it closer to the jet discussion

I would merge section 4 with section 5. You can say that the detector will be ready for commissioning with beam in early 2023. I suggest leaving out the PD2/3 review.

section 5: I would add again a mention of the QGP & heavy-ion collisions

references:

I would remove the references to the CDR & pCDR. For the references to sPHENIX documents (9 & 13) please add direct links so people can find them

general style: 

--put in spaces between numbers and units/math symbols

--avoid the use of first person pronouns such as “we"

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

Anne Sickles

Associate Professor

University of Illinois at Urbana Champaign

sickles AT illinois.edu

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

On Aug 17, 2022, at 3:58 AM, Hideki Okawa via sPHENIX-l <sphenix-l AT lists.bnl.gov> wrote:

Dear all, 

I am sending you a draft of my proceedings for the SQM2022: 

https://cernbox.cern.ch/index.php/s/VUMfR0fAOAtq0ES

The length is 6 pages for the plenary talks. 
The deadline for the submission is Aug. 28. 

Your comments and suggestions would be highly appreciated!

Best regards, 

Hideki

 

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