STAR HardProbes PWG

[Andrew Tamis <andrew.tamis AT yale.edu>]

Hi Yi,

Thank you for clarifying, I see what you mean now.  It is a plotting error, I can remake the plot with better aesthetics for my analysis note, but this is not a requested preliminary plot. 

Yes, this is all informed by how the data varied with different values used in the geant-level embedding, so this is how a change in those behaviors would shift the distribution.  As the curve is normalized out to one, there will always be a point where the shifted curve and nominal curve intersect, giving a low value of uncertainty (since its calculated as the difference).  I think it is coincidence that multiple systematics shifted the distribution to the same magnitude and therefore had a similar intersection point.

Best,

Andrew

On Thu, Sep 19, 2024 at 9:03 PM Yi Yang <yiyang429 AT gate.sinica.edu.tw> wrote:

Hi Andrew,

Thanks a lot for the reply and updated version. 

For p.3, probably it is my browser's issue, please see the attached picture (all the markers are super large). Please ignore it if it looks normal in your computer. 

Regarding the systematics on R_{L},  I would naively think that some uncertainties should have small R_{L} dependence, like tracking efficiency. But if I understand your statement correctly, when you varied the tracking efficiency, it will change the curve (data points) in R_{L} and there is a point will only have small change? Does it mean that the pivot point is the chosen by the curve (the data distribution) and there is most stable point (the smallest uncertainty)? Probably I misunderstood what you said.

Cheers,

Yi

+++++++++++++++++++++++++++++++++++++++++++++++++++
Yi Yang, Research Fellow
Institute of Physics, Academia Sinica
E-Mail: yiyang429 AT gate.sinica.edu.tw
Tel: +886-2-2789-6709
+++++++++++++++++++++++++++++++++++++++++++++++++++
-----Original message-----
From:Andrew Tamis<andrew.tamis AT yale.edu>
To:star-hp-l<star-hp-l AT lists.bnl.gov>
Cc:张炜<wzhang AT m.scnu.edu.cn>,Gabe Dale-Gau<gdaleg2 AT uic.edu>,Sooraj Radhakrishnan<skradhakrishnan AT lbl.gov>,Brennan Schaefer<brs521 AT lehigh.edu>,Song, Youqi<youqi.song AT yale.edu>,Diptanil Roy<roydiptanil AT gmail.com>,Nihar Sahoo<nihar AT rcf.rhic.bnl.gov>,tc88qy<tc88qy AT rcf.rhic.bnl.gov>,Mooney, Isaac<isaac.mooney AT yale.edu>
Date: Fri, 20 Sep 2024 02:39:26
Subject: Re: [[Star-hp-l] ] Preliminary requests

Hi Yi,

Thank you for the comments.

p3: I'm unsure what you mean, would you be able to clarify?

-Included Bad run list
-Included PAs

The dip in systematics in R_{L} is due to how the systematic variations interact with the normalization.  As systematic uncertainties shift the distribution to the right or left, and the normalization will move distributions at lower angles up and at higher angles down (In order to integrate out to one on the log scale), this results in the varied curves somewhat "pivoting" around a region, which results in lower systematics there.  I think it is good to represent systematics this way, because it reflects how the resultant curve would actually change with a change in hadronic correction, tower gain, etc.

Best,
Andrew 

On Thu, Sep 19, 2024 at 4:46 AM Yi Yang <yiyang429 AT gate.sinica.edu.tw> wrote:

Hi Andrew,

Thanks a lot for the combined request, I am about to ask for it. :-) 

I have some suggestions for your consideration. 

 - Please add the PA information

 - p3: the plots look funny to me, not sure if it is my issue. 

 - p6: Do you have the bad run list?

 - p16: there is a dip in R_L, do you know why? 

 - p23: I think you can remove this page for the preliminary request.

Cheers,

Yi

+++++++++++++++++++++++++++++++++++++++++++++++++++
Yi Yang, Research Fellow
Institute of Physics, Academia Sinica
E-Mail: yiyang429 AT gate.sinica.edu.tw
Tel: +886-2-2789-6709
+++++++++++++++++++++++++++++++++++++++++++++++++++
-----Original message-----
From:Andrew Tamis<andrew.tamis AT yale.edu>
To:Mooney, Isaac<isaac.mooney AT yale.edu>
Cc:张炜<wzhang AT m.scnu.edu.cn>,Gabe Dale-Gau<gdaleg2 AT uic.edu>,Sooraj Radhakrishnan<skradhakrishnan AT lbl.gov>,Brennan Schaefer<brs521 AT lehigh.edu>,Song, Youqi<youqi.song AT yale.edu>,Diptanil Roy<roydiptanil AT gmail.com>,STAR HardProbes PWG<star-hp-l AT lists.bnl.gov>,Yi Yang<yiyang429 AT gate.sinica.edu.tw>,Nihar Sahoo<nihar AT rcf.rhic.bnl.gov>,tc88qy<tc88qy AT rcf.rhic.bnl.gov>
Date: Tue, 17 Sep 2024 13:43:01
Subject: Re: [[Star-hp-l] ] Preliminary requests

Hi Isaac,

|vz - vpdVz| was a leftover typo, I have removed it.

I've posted a new version of the slides here: Combining the information from both and only included the most up to date figures that I am requesting preliminary for, with some aesthetic changes since the last update.

Hard Probes 2024 Preliminary Request Tamis | The STAR experiment (bnl.gov)

Best,
Andrew

On Mon, Sep 16, 2024 at 4:51 PM Mooney, Isaac <isaac.mooney AT yale.edu> wrote:

Hi Andrew,

Thanks for the preliminary request. Since I’ve seen your analysis daily as it develops, I don’t really have any further comments, and I sign off. I have a couple of small things, below. When you get the chance, please create a single set of slides with the final preliminary request so it can be posted along with your plots on the preliminary figures page (and the figures in the update are pretty grainy and small so please make sure the plots are visible).

Thanks,

Isaac

Original slides:

4. |vz - vpdVz| < ?

Updated slides:

4. Can you specify that the photons are intermediate here? I.e. it's via allowing the decays of the heavy neutrals, with the photon being the intermediate particle in the chain?

On Sep 16, 2024, at 09:49, Andrew Tamis <andrew.tamis AT yale.edu> wrote:

Hello Isaac,

Apologies for the late reply, here are the links to my initial preliminary request and the follow up.  Please let me know if you have any additional questions
https://drupal.star.bnl.gov/STAR/blog/atamis/TamisPreliminary-Request-82924
https://drupal.star.bnl.gov/STAR/blog/atamis/Tamis-Hard-Probes-2024-Preliminary-Update

Best,

Andrew

On Tue, Sep 10, 2024 at 3:10 PM Mooney, Isaac <isaac.mooney AT yale.edu> wrote:

Hi Hard Probes presenters,

I would appreciate it if you could reply to this message with a link to your preliminary request slides (if applicable) and a sentence or two describing any follow-ups you are currently implementing from previous meeting discussions before preliminary status can be given, as well as an estimate for the time/date when you will send a final set of request slides. Sorry to those of you who have already sent slides in some form to other email chains — it would just be helpful for the conveners if we could collect the latest and most up-to-date links all in one place as we review.

Thanks,
Isaac