STAR HardProbes PWG

[Barbara Trzeciak <barbara.trzeciak AT gmail.com>]

Hi Gabe,

thanks for the new version of the slides. Please find my comments below.

- s2: improve quality of the STAT figure

- s3: add z-axis title on the left plot, improve resolution of the right plot, and add information on the system and energy (all plots where you show data)

- s8- 13: dphi plots:

Add energy on the plots

AuAu -> Au+Au

pp -> p+p

R03 -> R = 0.3

- s13: are the pseudo-embedding results for matching R and const. pT selection as the corresponding p+p results ? If yes, move this information outside of the legend. 

Cheers,

Barbara

On Fri, Mar 24, 2023 at 12:19 AM Gabe Dale-Gau <gdaleg2 AT uic.edu> wrote:

HP-Conveners,

Thank you all for your input throughout this process. I have compiled a new version of my talk, adjusting for everything we discussed today in the meeting. I have updated the STAR-talks page here:

https://drupal.star.bnl.gov/STAR/presentations/Hard-Probes-2023/Baryon-Meson-Ratios-AuAu-and-pp-collisions-sqrtsNN-200-GeV

I have also updated my preliminary request slides accordingly, removing the plots we are no longer planning on showing at HP23. The preliminary request page also includes individual copies of all of my key plots, now in pdf form:

https://drupal.star.bnl.gov/STAR/blog/gdalegau/Preliminary-request-HP23-Final-version

If you have any further comments, please let me know. I will be traveling tomorrow, but I will get back to you with any further changes as soon as possible if necessary.

Thanks,

Gabe

On Wed, Mar 22, 2023 at 8:18 AM Nihar Sahoo <nihar AT rcf.rhic.bnl.gov> wrote:

Hello Gabe,

Thank you for having this interesting result on PID in jet.
We know this measurement is challenging. Great to see these results at
this stage.

General comment:
All d_phi plots, please include "Uncorrected" in side the plot.


Slide-1

"We use jet-track correlations to separate Jets from UE and measure p/𝛑
in jets "
-> "We measure p/pi yield ratio in jet using jet-track correlations"
You don't need to introduce _underlaying event_ from your 1st slide.
It depends on your taste.

Bottom correlation plot: I think you don't need to have this plot. Not
relevant to your analysis and physics.
But still if you want to keep it, please use better resolution.

Slide-2
"Introduction" -> Better to use " Jet-track correlation measurement
technique"
"𝑠 = 200 GeV p+p collisions, 2015" -> "$p$+$p$  \sqrt {s} = 200 GeV
(2015)"
"𝑠!! = 200 GeV 20% most central Au+Au collisions, 2014" -> 0-20% central
Au+Au  \sqrt {s_{\rm NN}} = 200 GeV (2014)"
"Jets" - > "Jet reconstruction:"
"various R " -> "various jet resolution parameter, R = 0.3, 0.4,0.5"
(make separate bullet)
"Fully reconstructed jets…" -> "Reconstructed jets with…"
"PID in jets" -> "particle indentification in jets"

Slide-3
"Low, 2.0 < 𝒑𝑻 < 3.5" -> "Low p_{\rm T}: 2.0 < p_{\rm T} < 3.5 GeV/c"
"Bin count protons and Fit for pions and kaons" (you don't need to
mention here)
Rather please add purity of the sample plot.

"High,  𝒑𝑻 > 3.5" -> "High p_{\rm T}:  p_{\rm T} > 3.5 GeV/c"
Please drop also these two bullet and add purity plot within these pt
ranges. That is more informative.

Slide4:
_ 1/N_jet d^2N/d_eta d_phi -> 1/N_jet d^2 N_trk / d_eta  d_phi  (same
for other plots)
_ put unit of pT range in the plot
_ Between "Raw correlation"  and  "Mixed Event", does that "/" 
represent "division" or "subtraction"? Please mention it.
"1]"-> remove it

Slide-5:
I think it is important to mention Y-aixs title of middle panel d_phi
correlation plot to indicate how do you normalize UE and Jet-like
correlation distributions. Or add some bullet.

SLide-6:
_Still your plots' outside legend not clearly visible. Increase the font
size.
_Here it is important to mention what is the dphi range you have used to
select these track yields? Like d_R in jet-like correlations.
_You need to mention here what is "Track-Track correlation"? Like how do
you correlate  two tracks; what is leading and associate track pT
selection?

Slide-7:
_Along with "Strong preference for 𝛑 over p"
_please also add another bullet that "jet-track and track-track
correlations give the same results"
_Include "uncorrected" inside the d_phi correlation plot

Left fig. In slide7,8,9: Please change filled box color or use unfilled
color box (with only box daubery color).
In the current format, makers are invisible.

Same comment for figure in Slide10,11,12,13,14: (This is your key plot,
so try to improve the marker and box)

Slide-10:
"Strong preference for 𝛑 over p in hard constituent jets" Bring this to
a visible position; a little up.
No one can see at this position. This is your key message.

Same for "Changing p/𝛑 ratio". In slide#12,13, 14
ANd "Changing p/𝛑 ratio" -> " p/𝛑 ratio enhancement with increase in jet
R"

Slide-12,13,14: Mention inside dphi figure "Uncorrected"
"Strong enhancement of intermediate 𝑝T associated yield" -> "d_phi
correlation distributions changes in central Au+Au relative to p+p with
increase in track pT" (something like that)
As this is an uncorrected results, I would soften the statement.


Slide-14:
"Broader distributions for larger jet R " -> "Noticeable change in shape
with increase in R"
We don't want to say something on these uncorrected distributions
strongly.


Slide-15:
Define "dR" here.

You need to explain a bit more, People may not get what you have done
here.
I would suggest take one example like
Use jet with R=0.3 and show deta-dphi correlation plot with different dR
circles in it as you have done for left figure.
Then say same for other cases. It will be easily conceivable.
And then indicate the right side plot.

Slide-16:
_ "Are we looking at jet substructure modification? " Not sure why do we
need this statement?
_ "additional jet-like objects reconstructed with softer constituents "
-> I would just say "Possible combintorial jet contribution"

Slide17:
I have a concern on your left most plot.
I know I have seen it before, now after going through all our results.
I think your "magenta circle" which is an embedding pp jet into AuAu may
not be correct or we are missing something there. Naively, your "magnets
circle" and "red box" should behave the same way.

I would suggest not to show this slide in your presentation. We have
enough material to discuss and bring attention.
We can discuss on this embedding part in details again after HP23
conference (sorry to say that).


Slide18:
"Hard-core Jets in Au+Au" -> "Hard-core Jets with constituent pT> 3
GeV/c in Au+Au " (I know we put in the figure but we need to mention in
text as well)
Make it please specific. Because this is the key point.

Cheers
Nihar











On 2023-03-22 02:36, Gabe Dale-Gau via Star-hp-l wrote:
> Conveners,
>
> Thank you for all of your comments and input.
> I have updated my Star-Talks submission here:
> https://nam04.safelinks.protection.outlook.com/?url="https%3A%2F%2Fdrupal.star.bnl.gov%2FSTAR%2Fpresentations%2FHard-Probes-2023%2FBaryon-Meson-Ratios-AuAu-and-pp-collisions-sqrtsNN-200-GeV&data=05%7C01%7Cgdaleg2%40groute.uic.edu%7Cab0b89d5eda6412ae94108db2ad7e34c%7Ce202cd477a564baa99e3e3b71a7c77dd%7C0%7C0%7C638150878970107411%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=gAvLw4qe6H6RCplAXItC9oL9zuibgUC96xF6I6u5yy8%3D&reserved=0
>
> I have implemented many changes in this version to address all of the
> comments I received from Nihar and Barbara, as well as general
> rephrasing throughout to simplify text on slides.
>
> Rongrong, the first three slides in the backup section are included to
> address your question about the origin of two strange points in the
> Au+Au correlated jet peak signal.
>
> I will create a separate drupal page with figures included as
> individual files shortly.
>
> Let me know if you have further questions or comments.
>
> Many thanks,
>
> Gabe
>
> On Mon, Mar 20, 2023 at 3:59 PM Ma, Rongrong <marr AT bnl.gov> wrote:
>
>> Hello Gabe
>>
>> Thanks for sending out your slides.
>>
>> I would like to follow up on what I asked last Thursday. Have you
>> looked into the two data points around dPhi ~ 0 with large error
>> bars for R = 0.5 case on slide 14, middle figure? Furthermore, one
>> can see that the data point close to 0 jumps up quite a bit for pp
>> (blue circles). Is this understood? Maybe it is worth looking at the
>> distributions before ME correction and UE subtraction.
>>
>> Best
>> Rongrong
>>
>>> On Mar 14, 2023, at 10:28 PM, webmaster--- via Star-hp-l
>> <star-hp-l AT lists.bnl.gov> wrote:
>>>
>>> Dear Star-hp-l AT lists.bnl.gov members,
>>>
>>> Gabriel Dale-Gau (gdaleg2 AT uic.edu) has submitted a material for a
>> review,
>>> please have a look:
>>>
>>
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>> [1]
>>>
>>> Deadline: 2023-03-26
>>> ---
>>> If you have any problems with the review process, please contact
>>>
>>
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