STAR task force for evaluating tracking efficiency uncertainty

[Robert Líčeník <licenik AT ujf.cas.cz>]

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

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