STAR HardProbes PWG

[Yi Yang <yiyang0429 AT gmail.com>]

Hi Te-Chuan, 

I forgot to say that you don't need the shedded uncertainties on data points in Fig. 5 and Fig. 6. 

Cheers,

Yi

On Wed, Aug 30, 2023 at 9:17 AM Yi Yang <yiyang0429 AT gmail.com> wrote:

Hi Te-Chuan,

Thanks a lot for the updated request and replies. I don't have any further comments on it. 

Cheers,

Yi

On Mon, Aug 28, 2023 at 4:31 PM Te-Chuan Huang <tchuang AT rcf.rhic.bnl.gov> wrote:

Hi Yi,

Thanks a lot for your useful comments. I have implemented them accordingly.

Followings are my answers to your questions:

- p7: pp reference for pT < 8 GeV was used in VPDMB30 study. It was calculated using the same method of Au+Au published result with PHENIX+STAR data. However, it was only calculated up to 8 GeV and there is no PHENIX data at high pT. So, there should be no significant difference in higher pT region. Therefore, I directly used STAR p+p results.

- p12: No special meaning. I checked if efficiency has difference between Ru+Ru and Zr+Zr before. “Both” just means this plots is produced with Ru+Ru and Zr+Zr combined. I covered it with the cut applied to avoid confusions.

- p26: Not pretty sure the reason but this bin has very few statistics. ~35% of the bins in mass distribution are empty.

- p34 and 35: Yes, I produced the plots since people were interested how BHT2 result compared to VPDMB30 results, and pT > 5 GeV results comped to Au+Au and CMS high pT results will look like during the PWG meeting.

Cheers,

Te-Chuan

On Aug 28, 2023, at 2:36 AM, Yi Yang <yiyang0429 AT gmail.com> wrote:

HI Te-Chuan,

Thanks a lot for the preliminary request. I have some minor comments/suggestions for your consideration. 

 - It would be good to mention this is the "dielectron channel" somewhere in the beginning. 

 - p7: you mentioned a reason for using Ziyue's pp reference for pT < 8 GeV and Run 12 for > 8 GeV, could you please remind me again and put it in this slide?

 - p12: left-handed plot, what does "Both" mean? Please indicate it in the plot. 

 - p13: please add "%" in the legend 

 - p26: Do you know why your result in the first N_part bin is significantly lower than the previous results? Is it because the pT cut (5 GeV vs. 0.2 GeV)?

 - p28 - p33: Please add physics messages for each plot. 

 - p34 and p35: I don't think you need to request a new preliminary for them since they contain the same physics messages, but replotting them. Do you miss references for some of the data points?

Cheers,

Yi

On Fri, Aug 25, 2023 at 11:46 PM Te-Chuan Huang via Star-hp-l <star-hp-l AT lists.bnl.gov> wrote:

Dear Hard Probes Conveners,

Please find my preliminary request slides at: https://drupal.star.bnl.gov/STAR/system/files/TeChuan_JpsiRaa_PreliminaryRequest.pdf

Any comment and suggestion will be more than welcome.

Cheers,

Te-Chuan

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