sPHENIX MAPS tracker discussion

[Xin Dong <xdong AT lbl.gov>]

Hi Zhaozhong,

For B-meson exclusive channel reconstruction, it is mostly challenging because of statistics due to the small decay branching ratio for any specific channel. Xiaolong did some estimate on the B+ -> D0bar + pi+ projection before, you can find in note sPH-HF-2017-002

https://portal.nersc.gov/project/star/dongx/sPHENIX/sPH-HF-2017-002-v1.pdf

Section 4, particularly Fig. 37 shows the significant projection in central and MB Au+Au collisions.

Thanks and Best Regards

/xin

On Wed, Aug 23, 2023 at 10:54 AM Liu, Ming Xiong via sPHENIX-MAPS-l <sphenix-maps-l AT lists.bnl.gov> wrote:

Hi zhaozhong,

I don’t think we have b-hadron Raa, only displaced D0’s.  Need to make them for the future.

Ming

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From: sPHENIX-MAPS-l <sphenix-maps-l-bounces AT lists.bnl.gov> on behalf of Shi, Zhaozhong via sPHENIX-MAPS-l <sphenix-maps-l AT lists.bnl.gov>
Sent: Wednesday, August 23, 2023 10:32:59 AM
To: Cameron Thomas Dean <cameron.dean AT cern.ch>; cdean AT bnl.gov <cdean AT bnl.gov>; Jin Huang <jhuang AT bnl.gov>; Antonio Silva via sPHENIX-HF-jets-l <sphenix-hf-Jets-l AT lists.bnl.gov>; Cameron Thomas Dean via sPHENIX-MAPS-l <sphenix-maps-l AT lists.bnl.gov>
Subject: [EXTERNAL] Re: [Sphenix-maps-l] [Sphenix-hf-jets-l] [QM 2023] Quark Matter 2023 Poster: b-hadron RAA and v2 with sPHENIX

 

Ah but those are more like non-prompt D. I guess I will say it as "b-hadron"...

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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From: Cameron Thomas Dean <cameron.dean AT cern.ch>
Sent: Wednesday, August 23, 2023 1:27 PM
To: Shi, Zhaozhong <zhaozhongshi AT lanl.gov>; cdean AT bnl.gov <cdean AT bnl.gov>; Jin Huang <jhuang AT bnl.gov>; Antonio Silva via sPHENIX-HF-jets-l <sphenix-hf-Jets-l AT lists.bnl.gov>; Cameron Thomas Dean via sPHENIX-MAPS-l <sphenix-maps-l AT lists.bnl.gov>
Subject: [EXTERNAL] Re: [Sphenix-maps-l] [Sphenix-hf-jets-l] [QM 2023] Quark Matter 2023 Poster: b-hadron RAA and v2 with sPHENIX

 

Hi Zhaozhong,

Yes, it’s in the BUP in Figures 4.6 and 4.7 https://indico.bnl.gov/event/15845/attachments/40963/68517/sPHENIX_Beam_Use_Proposal_2022.pdf

Cheers,
Cameron

From: sPHENIX-MAPS-l <sphenix-maps-l-bounces AT lists.bnl.gov> on behalf of "Shi, Zhaozhong via sPHENIX-MAPS-l" <sphenix-maps-l AT lists.bnl.gov>
Reply to: "zhaozhongshi AT lanl.gov" <zhaozhongshi AT lanl.gov>
Date: Wednesday, August 23, 2023 at 1:24 PM
To: "cdean AT bnl.gov" <cdean AT bnl.gov>, Jin Huang <jhuang AT bnl.gov>, Antonio Silva via sPHENIX-HF-jets-l <sphenix-hf-Jets-l AT lists.bnl.gov>, Cameron Thomas Dean via sPHENIX-MAPS-l <sphenix-maps-l AT lists.bnl.gov>
Subject: Re: [Sphenix-maps-l] [Sphenix-hf-jets-l] [QM 2023] Quark Matter 2023 Poster: b-hadron RAA and v2 with sPHENIX

 

Hi Jin and Cameron.,

 

Do we have b-hadron RAA and v2 approved to use? I will need to look them up honestly. 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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From: Dean, Cameron <cdean AT bnl.gov>
Sent: Wednesday, August 23, 2023 11:33 AM
To: Huang, Jin <jhuang AT bnl.gov>; Shi, Zhaozhong <zhaozhongshi AT lanl.gov>; Antonio Silva via sPHENIX-HF-jets-l <sphenix-hf-jets-l AT lists.bnl.gov>; Cameron Thomas Dean via sPHENIX-MAPS-l <sphenix-maps-l AT lists.bnl.gov>
Subject: [EXTERNAL] Re: [Sphenix-hf-jets-l] [QM 2023] Quark Matter 2023 Poster: b-hadron RAA and v2 with sPHENIX

 

Hi Zhaozhong,

Thanks as well for putting together your poster. I tried to add comments on top of Jin’s to avoid duplicates. There is one point that Jin made that I felt I had to make as well. I’m happy to receive and help with the next version.

 

• Abstract

 

• "Moreover, indirect measurements on non-prompt D-mesons and heavy flavor decayed leptons have been carried out extensively" is probably better as "Moreover, indirect measurements on non-prompt D-mesons and heavy flavor decayed leptons have been carried out extensively at both the LHC and RHIC". The current way implies STAR doesn't have a paper on this.

 

• Remove "In this poster,"

 

• "discuss projections" should be "demonstrate projections"
• "discuss the expected" should be "show the expected"

 

• Remove "We will also report on the status of b-physics analysis"

 

• b-physics at sPHENIX

 

• "Long decay lifetime, separation of secondary vertex from primary vertex". This sounds like two separate points but they're equivalent, a long lifetime means you can easily separate SV and PV so this should be more like "Long decay lifetime means good (or easy?) separation of secondary vertex from primary vertex"

 

• "Constraint" should be "Constrain"

 

• "Beauty quark hadronization mechanism" feels like half a sentence, should it be "Understand b-quark hadronization mechanism" (beauty to b will save you space to make the change)

 

• sPHENIX MVTX Detector

 

• I would change the second picture to a real picture of the MVTX. We have the detector and you should demonstrate the work you did

 

• "High granularity of pixel pitches" this sounds weird. The pitch is just the length of the pixel so this should be "High granularity of pixels".

 

• MVTX + INTT + TPOT Event Display

 

• Figure. Hao-Ren has updated this with the preliminary tag and track projection so you can swap this out.

 

• You mention cluster cleaning twice so one of them should be removed: "Cluster cleaning to reduce background noise" and "Clear clusters from cosmic muon track in all 3 tracking subsystems"

 

• "Simple circular fit to obtain cosmic muon track 𝑝'" we removed the pT from the plots so I wouldn't mention it (as someone will ask). Maybe say "Simple circular fit to demonstrate hit alignment between subsystems"?

 

• Enrich 𝒃"𝒃 Events with Artificial Intelligence

 

• I actually read through this before reading Jin's comments and came to the same conclusion. You should remove this and swap with a discussion on v2 and R_AA predictions. We have both in the BUP that you can use but there is no discussion in the poster on b-hadron predictions. If you need space, I would also remove the event display section.

 

• Summary

 

• I think this will be easy to re-write once you have the section on v2 and R_AA as they should be in the conclusion.
  
  Cheers,
  Cameron

 

From: sPHENIX-HF-jets-l <sphenix-hf-jets-l-bounces AT lists.bnl.gov> on behalf of "Huang, Jin via sPHENIX-HF-jets-l" <sphenix-hf-jets-l AT lists.bnl.gov>
Reply to: "Huang, Jin" <jhuang AT bnl.gov>
Date: Wednesday, August 23, 2023 at 12:18 AM
To: "Shi, Zhaozhong" <zhaozhongshi AT lanl.gov>, "sphenix-hf-jets-l AT lists.bnl.gov" <sphenix-hf-jets-l AT lists.bnl.gov>, "sphenix-maps-l-bounces AT lists.bnl.gov" <sphenix-maps-l-bounces AT lists.bnl.gov>
Subject: Re: [Sphenix-hf-jets-l] [QM 2023] Quark Matter 2023 Poster: b-hadron RAA and v2 with sPHENIX

 

Dear Zhaozhong

 

Thanks for putting together the poster draft. Please find my comments below. Please revise the poster and share with the list again:

 

• Abstract:

• “sPHENIX will begin commissioning with Au + Au collisions” should be changed to the past tense.

• b-physics at sPHENIX

• First bullet, “Excellent tracking and vertexing performance”:

• This bullet is out of context. Please remove it.

• “Retain memory through the medium” can be merged with the bullet before it.
• Search for fully reconstructed beauty hadron at RHIC

• A stronger (e.g., precision measurement) and more specific (e.g. which final state) statement should be used here.

• “sPHENIX has the capability of doing b-physics.”

• Can be moved to the next box of sPHENIX intro.

• First Year Data Taking and Analysis

• Please remove these two bullets: “People from all over the world participate in shift at the control room” , “Collected to large amount of beam data.”
• Please mention the date of running time
• “MVTX operated in streaming readout mode with physics trigger” is unclear. Please rephrase the role physics trigger played in the streaming mode.
• “Resume new run in late 2023 with p + p, p + Au, and Au + Au collisions.”
  -> “p + p, and Au + Au data taking in Run24.”

• MVTX + INTT + TPOT Event Display

• In general, there is large empty space in this display. You can consider just add a previously approved TPC display of the AuAu collision data.
• Remove “Ideal detector geometry used for event display.”
• “Simple circular fit to obtain cosmic muon track 𝑝T” : is not supported by the plot. Please either add the track to plot or remove this statement.

• Enrich bb Events with Artificial Intelligence

• It is unclear this can have a contribution to the Run24 physics program.
• Please replace the whole section with RAA and v2 projection, which is advertised in the title.

• Summary:

• “Tracking commissioning: event display of MVTX + INTT + TPOT detector with simple tracking to measure cosmic muon 𝑝T'”

• This bullet is both strange and duplication of the last one. Please remove it.
• “More physics simulations based on data performance ongoing.”
  -> sPHENIX will provide strong model constraints on the b-quark transport in the QGP at the RHIC energy

 

Cheers

 

Jin

 

 

______________________________

 

Jin HUANG

 

Physicist, Ph.D.

Brookhaven National Laboratory

Physics Department, Bldg 510 C

Upton, NY 11973-5000

 

Office: 631-344-5898

Cell:   757-604-9946

______________________________

 

From: Shi, Zhaozhong <zhaozhongshi AT lanl.gov>
Sent: Tuesday, August 22, 2023 9:26 PM
To: sphenix-hf-Jets-l AT lists.bnl.gov; sphenix-maps-l-bounces AT lists.bnl.gov
Cc: Liu, Ming Xiong <mliu AT lanl.gov>; Cameron Thomas Dean <cameron.dean AT cern.ch>; Huang, Jin <jhuang AT bnl.gov>; marziarosati <marziarosati AT gmail.com>
Subject: [QM 2023] Quark Matter 2023 Poster: b-hadron RAA and v2 with sPHENIX

 

Dear HF Topic Group Conveners,

I have just finished preparing a draft entitled "b-hadron RAA and v2 with sPHENIX " for my Quark Matter 2023 poster. I posted it on Invenio shown in the link below:

 

https://sphenix-invenio.sdcc.bnl.gov/records/0jrpd-r3022

 

Would you please have a look? Any comment or suggestion will be highly appreciated. 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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Xin Dong
Nuclear Science Division, Lawrence Berkeley National Laboratory
MS70R0319, One Cyclotron Road
Berkeley, CA 94720, USA
Tel: +1-510-486-4121
Email: XDong AT lbl.gov
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