STAR Flow, Chirality and Vorticity PWG

[ShinIchi Esumi <esumi.shinichi.gn AT u.tsukuba.ac.jp>]

Dear Petr
One more point that if you think the ratio (or difference) does have issues, 
Then we should also be worrying about individual vn for k+ and k- as well. 

After you store all your preliminary plots in the 
special drupal area for the preliminary location with necessary information 
at : 
https://drupal.star.bnl.gov/STAR/pwg/bulk-correlations/bulkcorr-preliminary-summary
then I would approve your talk. 
Best regards, ShinIchi

> On Oct 2, 2020, at 22:14, ShinIchi Esumi via Star-fcv-l 
> <star-fcv-l AT lists.bnl.gov> wrote:
> 
> Dear Petr
> Concerning on the same point on page 11 as Jiangyong mentioned, we’ve asked 
> you 
> to make sure the sign change of kaon vn ratio (and difference) at higher pT 
> is real or 
> it’s coming from pion contamination etc, which we did not hear you back on 
> this particular 
> issue, but it seems that you have now excluded the higher pT point from the 
> plot, although 
> you’ve shown us in the collaboration meeting up to higher pT and it was 
> consistent with 
> our previous publication, which might have the same issue as well, then we 
> would need to 
> correct the previous data, if this is really the case. Does that mean you 
> do now think they 
> are indeed affected by some PID problem at high pT? Since you’ve changed 
> the plot in 
> the last minutes after the last PWG, I would think we should be excluding 
> these ratios (and 
> differences) plots at least for kaon as a function of pT, until you explain 
> us with more details 
> especially in terms of the sign change trend with systematic error 
> including PID purity etc. 
> What do you think? 
> Best regards, ShinIchi
> 
>> On Oct 2, 2020, at 20:59, Jiangyong Jia via Star-fcv-l 
>> <star-fcv-l AT lists.bnl.gov> wrote:
>> 
>> Hi, Grigory and Petr,
>> 
>> The slides are nicely written, I don't have major comments on the 
>> structure of the talk.
>> 
>> I have one question that I asked during Petr's presentation a couple weeks 
>> ago.
>> 
>> Slide 11 when you show the difference and ratios between particle and 
>> antiparticles, the errors are extremely small. 
>> Do you assume the systematic uncertainty mostly cancel?  What about the 
>> purity and efficiency of PID cut, I assume
>> they will not cancel (yield of particles are anti-particles are different 
>> at low energy)
>> 
>> thanks,
>> 
>> Jiangyong
>> 
>> n 10/2/20 6:47 AM, Grigory Nigmatkulov via Star-fcv-l wrote:
>>> Dear Conveners,
>>> 
>>> Please take a look at the Petr Parfenov's slides and sign off you have no 
>>> questions.
>>> The conference starts on Monday.
>>> 
>>> Best regards,
>>> Grigory, Arkadiy and Petr
>>> 
>>> On Wed, 23 Sep 2020 at 20:53, webmaster--- via Star-fcv-l 
>>> <star-fcv-l AT lists.bnl.gov> wrote:
>>> Dear star-fcv-l AT lists.bnl.gov members,
>>> 
>>> Grigory Nigmatkulov (nigmatkulov AT gmail.com) has submitted a material for 
>>> a  
>>> review, please have a look:
>>> https://drupal.star.bnl.gov/STAR/node/52191
>>> 
>>> ---
>>> If you have any problems with the review process, please contact  
>>> webmaster AT www.star.bnl.gov
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