STAR task force for evaluating tracking efficiency uncertainty

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

Hello Robert

Thanks a lot. The new fit looks very nice, and the p1 value is very close to what we have seen based on Jpsi width from Run18 Isobar data. So we have a good consistency here. I really appreciate if you can help analyze other datasets (Run11, 14, 19) as well. Hopefully, this won't take too much of your time. 

Gene: is it possible that you can restore cosmic ray data from Run11, Run14 and Run19? I think a quarter of the Run18 statistics used here for each dataset is probably sufficient. 

Best

Rongrong

On Oct 20, 2022, at 8:21 AM, Robert Líčeník <licenik AT ujf.cas.cz> wrote:

Hello Rongrong,

since the y axis is log-scale (but the values are not), a simple linear function will not work, so I think you meant something like p0 + p1*10^x . It seems to do much better.

Here are the updated slides:

https://drupal.star.bnl.gov/STAR/event/2022/10/18/Tracking-Efficiency-Uncertainty-meeting/Cosmics-2018-update

Would it be helpful if I shared the file with the produced TTree with you? That way you can have a quick look by yourself and you don't have to wait for me in a different time zone every time.

However, I understand that you are very busy and I am of course more than happy to help.

Cheers,
Robert

On Wed, Oct 19, 2022 at 8:06 PM Ma, Rongrong <marr AT bnl.gov> wrote:

Hello Robert

Could you try a linear function y = p0 + p1*x to do the fit? Thanks. 

Best

Rongrong

On Oct 19, 2022, at 11:55 AM, Robert Líčeník <licenik AT ujf.cas.cz> wrote:

Hi Rongrong,

you are correct. The fit function is written on the first slide with momentum resolution and the range is the full histogram for the red fit and (-0.4 - 2) for the blue fit.

Cheers,

Robert

On Wed 19. 10. 2022 at 17:40 Ma, Rongrong <marr AT bnl.gov> wrote:

Hi Robert

Thanks for the update. However, the fit does not seem to work well. What function and fit range are you using? Thanks. 

Best

Rongrong

On Oct 19, 2022, at 9:05 AM, Robert Líčeník <licenik AT ujf.cas.cz> wrote:

Hi Rongrong,

no problem, here are the updated slides:

https://drupal.star.bnl.gov/STAR/event/2022/10/18/Tracking-Efficiency-Uncertainty-meeting/Cosmics-2018-update

Cheers,
Robert

On Tue, Oct 18, 2022 at 11:00 PM Ma, Rongrong <marr AT bnl.gov> wrote:

Hello Robert

Thanks. If possible, could you redo the fit starting from the lowest point, i.e. log(pt) ~ -0.4, and add the slope of the fit to the figures? 

Best

Rongrong

On Oct 18, 2022, at 2:38 PM, Robert Líčeník via Star-tf-trkeff-l <star-tf-trkeff-l AT lists.bnl.gov> wrote:

Hi everyone,

I uploaded my slides from today's meeting:

https://drupal.star.bnl.gov/STAR/event/2022/10/18/Tracking-Efficiency-Uncertainty-meeting/Cosmics-2018-update

The only difference is that I replotted the momentum resolution figures in log-log scale, as requested. 

Cheers,

Robert

On Mon, Oct 17, 2022 at 12:07 PM Petr Chaloupka via Star-tf-trkeff-l <star-tf-trkeff-l AT lists.bnl.gov> wrote:

Dear All,

Please join our meeting tomorrow at 10:00 New York time.

Please upload any material for discussion to the drupal page:
https://drupal.star.bnl.gov/STAR/event/2022/10/18/Tracking-Efficiency-Uncertainty-meeting

With best regards,
Petr

To join the meeting:

https://bnl.zoomgov.com/j/1607035037?pwd=WDVqaEdwa0RtTEM5a1VvZ24yU2gwdz09
Meeting ID: 160 703 5037
Passcode: 099371

One tap mobile
+16692545252,,1607035037#,,,,,,0#,,099371# US (San Jose)
+16468287666,,1607035037#,,,,,,0#,,099371# US (New York)

Dial by your location
         +1 669 254 5252 US (San Jose)
         +1 646 828 7666 US (New York)
Meeting ID: 160 703 5037
Passcode: 099371
Find your local number: https://bnl.zoomgov.com/u/aoARs6rfR

















_______________________________________________
Star-tf-trkeff-l mailing list
Star-tf-trkeff-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/star-tf-trkeff-l

_______________________________________________
Star-tf-trkeff-l mailing list
Star-tf-trkeff-l AT lists.bnl.gov
https://lists.bnl.gov/mailman/listinfo/star-tf-trkeff-l