sPHENIX is a new detector at RHIC.

["Perepelitsa, Dennis" <dvp AT bnl.gov>]

Hi Justin,

Thanks for sending out the draft. I do appreciate how you are trying to 
particularly “aim” the talk towards the a more GHP-like/EIC-interested crowd.

I had a few suggestions: 

somewhere on slides 5, 9, or 10, you could mention the high daq rate and that 
one can use the hermetic calorimeter system for unbiased jet triggering in 
p+p - since those really enable the physics program you talk about in the 
following slides

slide 9: the “sPH-TRG-2020-001” label may be a bit mysterious since we don’t 
really have a well-publicized central page of sPHENIX notes. You might 
therefore make that a hyperlink to: 
https://indico.bnl.gov/event/7881/attachments/30176/47160/sPH-TRG-2020-001.pdf
 

slide 10: “50 GeV” -> “40 GeV” - let’s not set the expectation we will have 
50 GeV photons! 

slide 12: is it worth adding that this is also a potentially useful channel 
for in situ jet calibration?

slide 13: you might stress that the unfolding for the case in the lower left 
would thus only be for the “p+p”-like response. That is, there are kinematic 
regions & observables we can pick where the additional UE effects are 
strongly sub-dominant to just the “p+p”-like part - those are great for 
“Day-1” measurements! 

slide 14: if you want a bit more physics, you could mention that due to the 
low jet pT reach, one will have sub-jets much closer to medium scales (i.e. 
than at the LHC)! So sPHENIX can work in this very interesting regime where 
the vacuum emissions star to compete with medium emissions.

slide 16: you might add a HF hadron v2 plot here. Even though you would have 
one plot with jets and one with hadrons, it would show that sPHENIX can 
simultaneously address the RAA & v2 for heavy flavor in a comprehensive 
program.

Dennis


> On Apr 11, 2021, at 10:20 PM, Frantz, Justin <frantz AT ohio.edu> wrote:
> 
> Hello,
> 
> I will be giving an sphenix overview talk at the APS GHP21 Group on 
> Hadronic Physics topical group meeting this Wednesday at 3:50pm.
> 
> An initial draft, which borrows heavily from several recent talks on the 
> topic especially Caroline Reidl's AUM talk,  is linked below.  It still 
> needs much superficial work but the slide topics and flow (modulo some 
> cutting) and plots choices are fairly finalized.   
> 
> More importantly, although it is a parallel talk in a Heavy Ion section, 
> since this is GHP I'm preparing it with the idea that it might include a 
> few different audience members than usual, e.g. some medium energy/Jlab 
> folks.  With this in mind and the EIC work ramping up, ECCE, etc, I'm 
> treating it as it may represent an opportunity to spotlight ourselves to 
> our "new cousins", so I have tried to emphasize some parts in that 
> direction, such as:
> 
> -Slightly more explanation than usual of QGP physics (that part is the most 
> incomplete but there are place holders)
> -An emphasis on cold QCD with sphenix
> -Some comments related to the interaction between sphenix and the EIC 
> schedule
> -ECCE advertisement
> 
> These parts of the talk are fairly developed and are the parts I am most 
> interested in receiving comments about.  The superficial stuff e.g. typos, 
> plot qualities, layout on  many slides, please do not comment on yet, I 
> will be updating the folder as Wed approaches with fixes to those.  I AM 
> very interested in non-obvious important points not mentioned on any of the 
> slides that you think should be added for any part of the talk.  
> 
> Current talk draft: 
> https://urldefense.com/v3/__http://www.phy.ohio.edu/*frantz/ghp21_sphenix/jfrantz_ghp21_sphenix_experiment_041421_draft2.pdf__;fg!!P4SdNyxKAPE!RYgHx-M18opvW29rEDuzZ1iKKA8tP9mlEiNmmvoIKFIJF437Rb49diTQ2ZEZ4C97XVeuiw$
>  
> 
> Parent Folder where new draft numbers will also appear 
> https://urldefense.com/v3/__http://www.phy.ohio.edu/*frantz/ghp21_sphenix/__;fg!!P4SdNyxKAPE!RYgHx-M18opvW29rEDuzZ1iKKA8tP9mlEiNmmvoIKFIJF437Rb49diTQ2ZEZ4C9rvt4sXA$
>  
> 
> Thanks!
> -Justin
> 
> 
> 
> ----------------------------------------------
> Justin Frantz, Ph. D.  
> RHIC/AGS User Executive Committee
> Brookhaven National Lab
> 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://urldefense.com/v3/__https://us02web.zoom.us/j/3699107530?pwd=TkZLeU1MY2d5eUpqeTJ5WUJTRHlVUT09__;!!P4SdNyxKAPE!RYgHx-M18opvW29rEDuzZ1iKKA8tP9mlEiNmmvoIKFIJF437Rb49diTQ2ZEZ4C_GoyyOxA$
>  
> 
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Dennis V. Perepelitsa
Assistant Professor, Physics Department
University of Colorado Boulder