STAR Flow, Chirality and Vorticity PWG

["Tang, Aihong" <aihong AT bnl.gov>]

Dear CW,

I asked "I suggest that the correction for this sample would be different.  How can you demonstrate that my statement is incorrect ?"

"That is what the systematic uncertainty is for."

I take this to mean that you acknowledge not knowing the answer to my question.

I wasn't following your question on our correction. I believe Jinhui has addressed it in his email, and you can follow up with him if you have further questions. 

Best,

Aihong

On May 17, 2024, at 9:02 PM, Robertson, Charles William <rober558 AT purdue.edu> wrote:

Hi Aihong,

That is what the systematic uncertainty is for.

Can you explain why the nature paper corrections are so irregular, positive for some beam energies and negative for others, and very non-monotonic in beam energy? 

Thanks,

-CW

---

From: Star-fcv-l <star-fcv-l-bounces AT lists.bnl.gov> on behalf of Tang, Aihong via Star-fcv-l <star-fcv-l AT lists.bnl.gov>
Sent: Friday, May 17, 2024 9:48 AM
To: STAR Flow, Chirality and Vorticity PWG <star-fcv-l AT lists.bnl.gov>
Cc: Tang, Aihong <aihong AT bnl.gov>
Subject: Re: [Star-fcv-l] FCV PWG meeting on 15/May/2024 Wed. 9:30 AM EDT

 

---- External Email: Use caution with attachments, links, or sharing data ----

Hi CW,

You said, "Detector correction is meant to correction for detector effects, not physics." 

Let's not talk about physics for now. Let me try again, and I hope I have made this crystal clear. Your correction depends on the sample provided (even their daughter-kaon spectra are the same), as you've demonstrated. I just gave you a different sample with the same kaon spectra. I suggest that the correction for this sample would be different. How can you demonstrate that my statement is incorrect ?

Thanks,

Aihong

On May 17, 2024, at 12:09 AM, Robertson, Charles William <rober558 AT purdue.edu> wrote:

Hi Aihong,

i) On your slide 2 presented yesterday, you showed that the "correction" obtained from two cases (rotated and mixed), both satisfying the condition of having the same kaon spectra, are different. This indicates that the correction can vary even the kaon spectra are the same.

Rotation by 180 degrees destroys v3, which is not included in our folding. This could cause a difference. That's why we prefer mixed-events as a default. Pair correlations (e.g. tracking merging or splitting) could also cause a difference.

ii) Based on this conclusion, if I say that the correction for the real phi case (which also has the same kaon spectra) could also differ from either case in point i). How can we demonstrate that my statement is incorrect ?

Detector correction is meant to correction for detector effects, not physics.

Thanks,

-CW

---

 

From: Star-fcv-l <star-fcv-l-bounces AT lists.bnl.gov> on behalf of Tang, Aihong via Star-fcv-l <star-fcv-l AT lists.bnl.gov>
Sent: Thursday, May 16, 2024 8:28 AM
To: STAR Flow, Chirality and Vorticity PWG <star-fcv-l AT lists.bnl.gov>
Cc: Tang, Aihong <aihong AT bnl.gov>
Subject: Re: [Star-fcv-l] FCV PWG meeting on 15/May/2024 Wed. 9:30 AM EDT

 

---- External Email: Use caution with attachments, links, or sharing data ----

Dear CW,

At yesterday's FCV meeting, the discussion shifted quite a bit due to back-and-forth between Fuqiang and myself. I would like to refocus on a specific point to see if we can make progress.

i) On your slide 2 presented yesterday, you showed that the "correction" obtained from two cases (rotated and mixed), both satisfying the condition of having the same kaon spectra, are different. This indicates that the correction can vary even the kaon spectra are the same.

ii) Based on this conclusion, if I say that the correction for the real phi case (which also has the same kaon spectra) could also differ from either case in point i). How can we demonstrate that my statement is incorrect ?

Thanks,

Aihong

On May 15, 2024, at 1:36 PM, Robertson, Charles William via Star-fcv-l <star-fcv-l AT lists.bnl.gov> wrote:

Hello All, 

My slides from today are here:

https://drupal.star.bnl.gov/STAR/system/files/SQM_9.pdf

Thank you,

-CW 

---

  

From: Star-fcv-l <star-fcv-l-bounces AT lists.bnl.gov> on behalf of Junyi Han via Star-fcv-l <star-fcv-l AT lists.bnl.gov>
Sent: Wednesday, May 15, 2024 10:16 AM
To: STAR Flow, Chirality and Vortici <star-fcv-l AT lists.bnl.gov>
Cc: Junyi Han <jyhan AT mails.ccnu.edu.cn>
Subject: Re: [Star-fcv-l] FCV PWG meeting on 15/May/2024 Wed. 9:30 AM EDT

 

---- External Email: Use caution with attachments, links, or sharing data ----

Dear All,

I have uploaded my slides in this link:https://drupal.star.bnl.gov/STAR/system/files/20240513.pdf. Thanks a lot!

Best regards,

Junyi

 

 

------------------ Original ------------------

From:  "韩君仪"<jyhan AT mails.ccnu.edu.cn>;

Date:  Wed, May 15, 2024 00:09 AM

To:  "STAR Flow, Chirality and Vortici"<star-fcv-l AT lists.bnl.gov>; 

Subject:  Re: [Star-fcv-l] FCV PWG meeting on 15/May/2024 Wed. 9:30 AM EDT

 

Dear All,

I would like to request the preliminary of Hyper-Nuclei v1 for SQM2024 meeting.

Thanks and Best regards,

Junyi

 

 

------------------ Original ------------------

From:  "STAR Flow, Chirality and Vortici"<star-fcv-l AT lists.bnl.gov>;

Date:  Tue, May 14, 2024 08:55 PM

To:  "STAR Flow, Chirality and Vortici"<star-fcv-l AT lists.bnl.gov>; 

Cc:  "Robertson, Charles William"<rober558 AT purdue.edu>; 

Subject:  Re: [Star-fcv-l] FCV PWG meeting on 15/May/2024 Wed. 9:30 AM EDT

 

Hello All,

We would like to present an update on our spin alignment study and request preliminary for our SQM talk.

Thank you,

-CW

---

  

From: Star-fcv-l <star-fcv-l-bounces AT lists.bnl.gov> on behalf of xgou via Star-fcv-l <star-fcv-l AT lists.bnl.gov>
Sent: Monday, May 13, 2024 2:56 AM
To: STAR Flow, Chirality and Vorticity PWG <star-fcv-l AT lists.bnl.gov>
Cc: xgou <xgou AT rcf.rhic.bnl.gov>
Subject: Re: [Star-fcv-l] FCV PWG meeting on 15/May/2024 Wed. 9:30 AM EDT

 

---- External Email: Use caution with attachments, links, or sharing data ----


Dear conveners,

  I would like to request the preliminary on "Lambda global polarization
in AuAu collisions at 7.7, 9.2, 11.5, 14.6 and 17.3 GeV BES-II".

  Please add me to the agenda, thank you!


Best regards,
Xingrui


> Dear All,
>
> We shall have our weekly FCV PWG meeting this Wednesday (15/May/2024)
> at 9:30 AM EDT. If you wish to present please let us know. The agenda
> will be collected at:
> https://nam04.safelinks.protection.outlook.com/?url="https%3A%2F%2Fdrupal.star.bnl.gov%2FSTAR%2Fblog%2Fjjiastar%2Fbulkcorr&data=05%7C02%7Crober558%40purdue.edu%7C78efef5144994ee9a25108dc7319d722%7C4130bd397c53419cb1e58758d6d63f21%7C0%7C0%7C638511802330135073%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=DtpGNMITWGP8kGnESOMOJp4vwi4yu45hdg9OIB1k%2FeY%3D&reserved=0
> Please send us your slides by Tuesday. Zoom details are copied below.
>
>
> Please take a note of the STAR internal deadlines for CPOD and SQM.
> Presenters are requested to give regular updates in the PWG.
>      - CPOD presentations due to PWG by May 6. please upload your
> slides to Drupal in time if haven't done so.
>      - SQM presentations due to PWG by May 20. New preliminary
> approvals should happen the week of May 13 (this week)
> If you are requesting new STAR preliminary results, you should prepare
> supporting materials following:
> https://nam04.safelinks.protection.outlook.com/?url="https%3A%2F%2Fdrupal.star.bnl.gov%2FSTAR%2Fsystem%2Ffiles%2FPrelim_Request_template.pdf&data=05%7C02%7Crober558%40purdue.edu%7C78efef5144994ee9a25108dc7319d722%7C4130bd397c53419cb1e58758d6d63f21%7C0%7C0%7C638511802330144348%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C0%7C%7C%7C&sdata=8ahDP9Ecc9HumW8dtJ6%2BNP2BMZj2OHBNOELPBEKfkZ4%3D&reserved=0
>
>      - STAR internal deadline for submitting abstracts for HP 2024 to
> the PWGs is May 11
>
> Thanks and regards,
> Prithwish, Zhenyu and Subhash
>
>
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