sPHENIX discussion of physics

["Dean, Cameron" <cdean AT bnl.gov>]

Hi Zhaozhong,

Thanks for the slides, I think the talk looks good and my main points are minor things like updating plots and thinking about what points to stress. I was copying down notes as Hideki sent his comments and I think we overlapped a little but find my suggestions below.

Cheers,

Cameron

In general, I would say you want to emphasise that sPHENIX is both complimentary to the LHC experiments and can probe regions that the LHC can't. Also, you seem to be missing citations, you can link to our public notes on our indico pages.

Slide 2 - The sPHENIX picture is out of date, there is no mention of the TPOT, sEPD, MBD or ZDC. Ross Corliss showed an an updated figure, https://indico.bnl.gov/event/16174/ 

Slide 3 - I think this road map is too complicated and also a bit out of date. You could probably make your own timeline that looks over what we achieved this year and what will be done for the next few years. So you can say that the HCals are in, we're inserting the EMCal, trackers are constructed etc.

Slide 4 - The INTT picture is out of date as they've completed the construction of at least the first 2 layers of 4. Also, the INTT has ladders instead of staves. You can get a good INTT picture from my AUM talk https://indico.bnl.gov/event/16163/   

Slide 5 - I think this is a slide you can be very enthusisatic about. For the MVTX picture, you could show the two completed halves here instead of on eof hte half layers before cabling. You could say the LBL CMM showed stave placement to < 50 microns. Instead of the 8-stave telescope, you could say we'll be stress-testing the system before data taking, we'll be taking cosmic data for alignment etc.

Slide 6 - You should update the link to the 2022 BUP, currently it links to the 2020 BUP. https://indico.bnl.gov/event/15845/attachments/40963/68517/sPHENIX_Beam_Use_Proposal_2022.pdf 

Slide 8 - A grey line appeared on my PDF between the detector sketch-up and the tracking diagram.

Also on this slide, you could verbally mention that the MVTX gives precision vertexing, the INTT discriminates the beam crossing and the TPC gives the main momentum measurement so all three trackers compliment each other.

Slide 9 - Slide looks good. In case a question comes up, the low pT reach of the B is related to the low pT reconstruction of the D candidate. I would maybe remove the last bullet point, we might not want to promise measurements to early in case it gives the wrong impression.

Slide 10 - You should update the right hand figure with a higher resolution picture, https://indico.bnl.gov/event/10004/attachments/31207/49253/sPH-HF-2019-001.pdf 

Slide 14 - We have an updated R_AA projection with the Upsilon(3S). You could also take a moment here to consider the CMS results from QM22 and how we fit into the picture.

On Aug 26, 2022, at 4:26 PM, Hideki Okawa <Hideki.Okawa AT cern.ch> wrote:

Hi Zhaozhong, 

Nice slides. 

Quick minor comments, but you should update the plots to 

the BUP2022 version. Many of them are just relabeling, 

but there are several new plots (e.g. b-jet substructure). 

In particular, the upsilon figure now has an Y(3S) projection 

as well. So, you should definitely use the new one on p.14. 

p.6: 

- On the same point, the link to the BUP on p.6 should point 

to the 2022 version. 

- 145B events -> 141B events

Cheers, 

Hideki 

---

From: sPHENIX-MAPS-l [sphenix-maps-l-bounces AT lists.bnl.gov] on behalf of Zhaozhong Shi via sPHENIX-MAPS-l [sphenix-maps-l AT lists.bnl.gov]
Sent: Friday, August 26, 2022 01:05
To: ming AT bnl.gov; sphenix-physics-l-bounces AT lists.bnl.gov; sphenix-maps-l AT lists.bnl.gov; Jin Huang
Subject: Re: [Sphenix-maps-l] First Draft of My Talk at QNP 2022: The sPHENIX Open and Close Heavy Flavor Program

Hi Ming,

Thank you very much for the comments. I will take the comments and look for more update-to-date picture. 

Sincerely,

Zhaozhong Shi

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

Zhaozhong Shi, PhD

Director's Postdoctoral Fellow

P-3: Nuclear and Particle Physics and Application

Los Alamos National Laboratory

TA-53 Building 1 A106

Los Alamos, New Mexico 87545

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

---

From: Ming Liu <ming AT bnl.gov>
Sent: Thursday, August 25, 2022 12:38 PM
To: Zhaozhong Shi <zzshi AT mit.edu>; sphenix-physics-l-bounces AT lists.bnl.gov <sphenix-physics-l-bounces AT lists.bnl.gov>; sphenix-maps-l AT lists.bnl.gov <sphenix-maps-l AT lists.bnl.gov>; jhuang AT bnl.gov <jhuang AT bnl.gov>
Cc: Ming Liu <ming AT bnl.gov>
Subject: Re: First Draft of My Talk at QNP 2022: The sPHENIX Open and Close Heavy Flavor Program

 

Hi Zhaozhong,

Thank for sharing the slides, they look pretty good. Just a few minor comments on technical progress:

• Title,   remove “open and close” ?
• P3, may update the figure …. “End of construction ~Dec. 21”, current schedule is a bit delayed
• P4, update pictures with the latest one, a lot of progress made in the last a few months
• P5, MVTX detector are assembled at LBNL

Cheers,

Ming 

 

----- <image001.png>

Dr. Ming Xiong Liu P-3, MS H846 Physics Division   Office: 505.667.7125 Mobile: 505.412.7396 Los Alamos National Laboratory

 

 

From: Zhaozhong Shi <zzshi AT mit.edu>
Date: Thursday, August 25, 2022 at 12:16 AM
To: "sphenix-physics-l-bounces AT lists.bnl.gov" <sphenix-physics-l-bounces AT lists.bnl.gov>, SPHENIX MVTX <sphenix-maps-l AT lists.bnl.gov>, "Ming Liu (BNL)" <ming AT bnl.gov>, Jin Huang <jhuang AT bnl.gov>
Subject: First Draft of My Talk at QNP 2022: The sPHENIX Open and Close Heavy Flavor Program

 

Dear sPHENIX Heavy Flavor Topic Group,

 

I have just made the first draft for my QNP 2022 talk entitled "The sPHENIX Open and Close Heavy Flavor Physics Program" held virtually from September 5 - 9. I might still be slightly polishing/refining some of my slides on Thursday. But the main content will not be changed significantly. Could you please review my slides and give me feedback by the end of Friday so that I could implement them and finalize draft before I go on vacation this Saturday? Thank you very much!

 

Sincerely, 

Zhaozhong Shi

 

 

 

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

Zhaozhong Shi, PhD

Director's Postdoctoral Fellow

P-3: Nuclear and Particle Physics and Application

Los Alamos National Laboratory

TA-53 Building 1 A106

Los Alamos, New Mexico 87545

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

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