sPHENIX is a new detector at RHIC.

["W.A. Zajc" <zajc AT nevis.columbia.edu>]

Hi Dennis:

Thanks for this, I will update accordingly. 

Sasha Milov was asking me at coffee today about our projections for upsilons in p+p, this should satisfy his curiosity. 

Best regards,

Bill 

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W.A. Zajc
I.I. Rabi Professor of Physics
Columbia University
New York, NY 10027

https://blogs.cuit.columbia.edu/waz1/
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On May 29, 2023, at 6:31 PM, Perepelitsa, Dennis via sPHENIX-l <sphenix-l AT lists.bnl.gov> wrote:

Hi Bill,

Thanks for giving us a preview of this - interesting to see your take on the broader context and then specifics of the sPHENIX physics programs.

I have very little to suggest, except for an update of the Upsilon projection plot in your backup slide 40. STAR has since published the “Preliminary” measurement we used in that projection. Thus, we have updated the plot with their published values to be friendly to our STAR colleagues (and also because the LRP authors asked for an updated plot like this) - attached here. I think it still makes an excellent impression.

Dennis

On May 23, 2023, at 3:48 PM, W.A. Zajc via sPHENIX-l <sphenix-l AT lists.bnl.gov> wrote:

Dear sPHENIX Colleagues:

(Thanks to Anne and Dennis for pointing out to me the critical missing link to my slides.)

In ~180 hours, I will gave a talk titled “Exploring the sQGP with sPHENIX” at the ExploreQGP Workshop in Belgrade: https://indico.ipb.ac.rs/event/554/ . 

My draft slides are available here: https://indico.bnl.gov/event/19361/

This is not an official sPHENIX talk, rather it’s my particular view of sPHENIX relevant to my research interests and tis workshop. I was invited to speak on whatever I wished to present, and I chose this particular topic. I have tried to use only official sPHENIX plots, and have taken most of the sPHENIX material from the beautiful recent talks of Anders Knospe and Weihu Ma. I welcome your corrections, suggestions, etc.

Some preemptive remarks:

The workshop is limited to 70 participants, but contains many of the usual suspects in our community. I want to make sure whatever I say about sPHENIX is accurate. 

The talk is 25’+5’ . Yes, I know it’s too long.

The organizers strongly suggest that the slides be projected from  a PDF file, not Powerpoint, in 16:9 format.

Remarks on specific slides:

14) The big white blank in the picture is to indicate the shield wall is in place; if anyone has a picture of the shield wall I would be very happy to swap it in. 

26) There is a reference that is attached to the standard sPHENIX plot in the lower right on this slide. I deliberately covered it up, because the figure is not in the reference.The reference points to an article by Martin Habich, Jamie Nagle and Paul Romatschke in which a parameterization for the time evolution of the medium is given. Jamie then used that information along with a Berndt Mueller paper to generated the curves shown in this plot. (Thanks to Jamie for explaining this to me.) The best reference for this figure is in fact the sPHENIX proposal. 

36) The event display is for iHCal and oHCal hits in real-data taking with a ~mid-central MBD trigger. This of course requires collaboration approval to show in public. I do not see a downside, but I am not in charge. I would of course be happy to replace/augment it with the “latest and greatest” right up to the time of the talk. (Thanks to the entire HCal crew in getting it commissioned and timed in, and to Oliver Suranyi for this particular event display.)

Best regards,

Bill 

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W.A. Zajc
I.I. Rabi Professor of Physics
Columbia University
New York, NY 10027

https://blogs.cuit.columbia.edu/waz1/
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Dennis V. Perepelitsa
Associate Professor, Physics Department
University of Colorado Boulder
on sabbatical at Brookhaven National Laboratory

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