STAR HardProbes PWG

["Ma, Rongrong" <marr AT bnl.gov>]

Hello Nihar

Thanks for updating Fig. 3 in the paper. 

As you mentioned, different dPhi bins contribute differently to the 
integrated recoil jet yields and I_AA for 2.35 < dphi < 3.14. However, 
according to Fig. 2 of the paper, recoil jet yield drops exponentially with 
decreasing dphi, so the new bins with upper limits that you just added are 
furthest to dphi = 3.14, and thus contribute the least. It is not clear to me 
how they can pull the integrated I_AA so significantly. If possible, I 
suggest to directly compare recoil jet yields for the two cases (vs. pt or 
vs. dphi). This can avoid the complicated weighted average of I_AA. 

Best
Rongrong

> On Jun 19, 2024, at 12:07 PM, Nihar Sahoo <nihar AT rcf.rhic.bnl.gov> wrote:
> 
> Hello Rongrong,
> 
> Thank you for pointing this.
> A updated upper bound for R=0.2 of 15-20 GeV/c pi0+jet case is included in 
> paper Fig.3. (It was missed in previous draft but now corrected)
> This one I checked it before.
> For pi0+jet 15-20 GeV/c R=0.2 case:
> As this is a differential measurement in Delta phi, each dphi contributes 
> differently.
> The last bin which is reported with upper bound is greater than I_AA=0.3 
> (see revised Fig.3), hence this bin contributes such that resultant 
> integrated IAA(pTjet) value is around 0.3 (which is del_phi: 2.35 to 3.14 
> rad).
> The same scenario is for 10-15 GeV/c for R=0.2; where the upper bound is 
> lower than 0.3, and that contributes to Integrated IAA(pTjet) value.
> 
> The updated paper draft (same v2): 
> https://drupal.star.bnl.gov/STAR/system/files/AcoplanarityPaper_v2.pdf
> 
> Best
> Nihar
> 
> 
> On 2024-06-19 03:35, Ma, Rongrong wrote:
>> Hello Nihar
>> Thanks a lot for addressing my comments. Those plots for consistency
>> check in AN are very useful. However, it is not clear how you extract
>> the I_AA values from dPhi differential measurement. Do you use the
>> same dPhi range and same pp reference as in I_AA(pT) analysis? In the
>> lower panel of Fig. 28, integrated I_AA(dphi) ~ 0.3 for pi0 triggers
>> and recoil R = 0.2 jets of 15 - 20 GeV/c. However, in Fig. 3, bottom
>> panel of the paper draft, I_AA values in all three dPhi bins are below
>> 0.3. Why? The same question goes to pi0 trigger, recoil R = 0.2 jets
>> of 10-15 GeV/c. The integrated I_AA value is about 0.3 in AN, but all
>> three I_AA(dphi) values are above 0.4 in the paper draft.
>> Best
>> Rongrong
>>> On Jun 18, 2024, at 4:25 AM, Nihar Sahoo via Star-hp-l 
>>> <star-hp-l AT lists.bnl.gov> wrote:
>>> Hello Rongrong, Yi , and Isaac,
>>> Thank you for your constructive comments.
>>> We have worked on your comments. Please find our responses at one place:
>>> (Rongrong, Yi, and Isaac's comments are in order)
>>> https://drupal.star.bnl.gov/STAR/system/files/PWGComments_Acoplanarity_June16.pdf
>>> In this revised paper draft, Supplement material is included.
>>> Revised paper draft 
>>> (v2):https://drupal.star.bnl.gov/STAR/system/files/AcoplanarityPaper_v2.pdf
>>> Revised AN v2: 
>>> https://drupal.star.bnl.gov/STAR/system/files/AcoplanarityAanalysisNote_V2_0.pdf
>>> We request HP-pwg converners to help us forming GPC.
>>> Best
>>> Nihar for PAs( Derek, Saskia, Peter)
>>> On 2024-05-06 12:55, Yi Yang wrote:
>>>> Hi Nihar,
>>>> Thanks a lot for the well-written draft and analysis note.
>>>> I agree with Rongrong's comments, so won't repeat here. I have some
>>>> minor ones for your consideration.
>>>> Paper draft:
>>>> - L36 - 38: the hyphens look a bit strange to me, it should look
>>>> like the one in L26.  (similar for L314 and 315)
>>>> - L41: high energy --> high-energy
>>>> - L58: pT, jet > 30 GeV/c
>>>> - L59: R=0.3 --> R = 0.3
>>>> - L116: Gev --> GeV
>>>> - Eq.(1) and (2): it should be d^2 N_jet and d^2 sigma
>>>> - L156: sqrt(s_NN)=200 GeV --> sqrt(s_NN) = 200 GeV
>>>> - Figure 1: I would suggest to put the information in the right
>>>> panel to the left panel as well, just in case someone cut the left
>>>> panel only and there is no information on that.
>>>> - L229: What does "TBD" mean here? Will this affect the final
>>>> physics conclusion?
>>>> - L245: Fig.2 --> Figure 2
>>>> Question: (I probably asked it earlier) you show different behavior
>>>> for R = 0.2 and 0.5, does it make sense to try other R numbers to see
>>>> the actual R-dependence?
>>>> Analysis note:
>>>> - L172: Figure 23 --> Figure 9?
>>>> - Question: you are using PYTHIA-8 in the embedding/simulation, but
>>>> you used PYTHIA-6 for the comparison in the result. Why not use the
>>>> same version of PYTHIA?
>>>> -  Don't you have the systematics from the unfolding iteration?
>>>> - Figure 23: It clearly shows the closure is not good between 2.5
>>>> and 3, and you are using log in the ratio. Any systematics associated
>>>> with it?
>>>> - L403, 404: there are "TBA"s, what does that mean?
>>>> - L435: The uncertainty on dPhi weights is "TBD"?
>>>> - Figure 26: do you have a similar plot for R = 0.2? What do the two
>>>> "light blue" lines mean here?
>>>> Cheers,
>>>> Yi
>>>> On Mon, Apr 8, 2024 at 10:16 AM Nihar Sahoo via Star-hp-l
>>>> <star-hp-l AT lists.bnl.gov> wrote:
>>>>> Hello HP-pwg,
>>>>> We have finalized STAR gamma+jet and pi0+jet acoplanarity paper
>>>>> draft.
>>>>> Paper draft, analysis Note, and paper webpage can be found below.
>>>>> Please send your comment and feedback.
>>>>> We request to form GPC.
>>>>> Paper draft:
>>>> https://drupal.star.bnl.gov/STAR/system/files/AcoplanarityPaper_v1.pdf
>>>>> Analysis Note:
>>>> https://drupal.star.bnl.gov/STAR/system/files/AcoplanarityAanalysisNote_V0_0.pdf
>>>>> Paper webpage:
>>>> https://drupal.star.bnl.gov/STAR/blog/nihar/Paper-webpage-Measurement-direct-photonjet-and-pi0jet-azimuthal-correlation-AuAu-and-pp-c
>>>>> Thank you
>>>>> PAs (Nihar, Derek, Saskia, and Peter)
>>>>> _______________________________________________
>>>>> Star-hp-l mailing list
>>>>> Star-hp-l AT lists.bnl.gov
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