STAR HardProbes PWG

[Yu-Ming Liu <a0978279515 AT gmail.com>]

Hi Qian and Barbara,

sorry for the late reply.

Attached are the svg files of plots which Qian used in p13, v2 as a function of pT in 20-60% centrality and v2 in pT 4-10 GeV/c in 0-80%centrality.

Best,

Yu-Ming  

tc88qy via Star-hp-l <star-hp-l AT lists.bnl.gov> 於 2022年6月8日 週三 下午7:06寫道：

Hi Barbara and all

  After a local STAR group rehearsal, I updated the new version in the
same link (v4)
Please send out your comments. Thanks

Qian Yang


On 2022-06-05 09:50, tc88qy via Star-hp-l wrote:
> Hi Barbara
>
> Thanks for your suggestion, Please find my rely inline. and new
> version of slides are in the same link
>
>
> Qian Yang
>
> On 2022-06-04 16:37, Barbara Trzeciak wrote:
>> Hi Qian,
>>
>> thanks for the update. The slides are very nice, please find my
>> comments below.
>>
>> Cheers,
>> Barbara
>>
>> s3 - I would also mention CNM effects
> Here I want to more focus on the hot medium effect. so I did not
> mention CNM.
>
>> s4 -  How it affect ->  How is it affected
> done
>> s5 - w be established -> evolves (?)
> done
>> s6 - v2 -> v_2
> done
>> s8 - make the left plot larger
> done
>> s9- dependence were shown -> dependence is observed
> done
>> s11 - you can emphasise here precision of the isobar measurement
> done
>> s13 - it would be good to have better quality plots here. Maybe
>> Yu-Ming can prepare example procedure figures with better graphics.
>> Also, are these efficiency weighed, is there some physics one can
>> extract ?
> Sure, It will be good that Yu-Ming can prepare one page of slides for
> the procedure.
> The graphic is from Yu-Ming's preliminary request slides, I think it
> is efficiency weighted.
>
>> s14 - I think it makes more sense to compare 0-80% isobar to 0-80%
>> Au+Au - so to have the Au+Au results on the left plot. But let's also
>> see what others think and we can then decide on the final version of
>> these plots.
>> Also, for the 20-60% range please keep in mind that Yu-Ming might have
>> his HT results early next week - in this case please update the plot.
>> s15 - since we have higher pT results it would be nice to have here
>> also the integrated v2 for higher pT > 4 GeV/c from the HT.
>
> ok
>
>> s15 - it's not so obvious to me how much better precision we have in
>> isobar compared to Au+Au. Is it possible to combine Au+Au for pT < 4
>> GeV/c ? Also, I think it would be better not to combine stat. and sys.
>> uncertainties for Au+Au results (also for the other comparison), it
>> might show better statistical differences between the two results.
>
> The combination is not just combine the final physics data point, But
> do the extraction from the beginning.
> and the stat. and sys. are all needs re-calculation.
> I did not put sys. uncertainties for the Au+Au results, the error bars
> are just stat. uncertainties.
> But the sys. uncertainties is small for Au+Au.
>
>> s15 - for low pT, i.e. ~< 1 GeV/c, we expect 0 v2 because of the mass
>> effect. If it's fast, can you calculate integrated v2 for pT > 1 GeV/c
>> ?
> I need to do some change to have this results. Let's us see, If I can
> have the final results next week.
>>
>> On Fri, Jun 3, 2022 at 8:54 AM tc88qy via Star-hf-l
>> <star-hf-l AT lists.bnl.gov> wrote:
>>
>>> Hello All
>>>
>>> As we discussed in yesterday's HP meeting. I have updated the
>>> slides to
>>> a new version.
>>> Please find in the same link. Your comments and suggestion are
>>> welcome.
>>>
>>> Qian Yang
>>>
>>> On 2022-05-31 19:27, webmaster--- via Star-hf-l wrote:
>>>> Dear star-hf-l AT lists.bnl.gov members,
>>>>
>>>> Qian Yang (qianyangstar AT gmail.com) has submitted a material for a
>>>> review,
>>>> please have a look:
>>>> https://drupal.star.bnl.gov/STAR/node/59787
>>>>
>>>> ---
>>>> If you have any problems with the review process, please contact
>>>> webmaster AT www.star.bnl.gov
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