[Primex2] Primex2 Compton DNP 2017 talk

[li ye]

Hi Pawel
Thank you for the comments
I will drive to PA today and i dont think i can do the practice talk today
maybe we can do it tomorrow after i pickup ilia from airport
Cheers


On Tue, Oct 24, 2017 at 9:01 AM, <pawel at jlab.org> wrote:

> Mr. Li,
>
> You're almost there!
> Here are my comments/suggestions.
>
> You use a word "test/tested" in a couple of places in the presentation. We
> are not
> testing this theory. It's more like it tests us and our capabilities. The
> fact that is
> so well understood allows us to measure it with such high accuracy and
> precision. In
> this spirit, I'd suggest you change "test/tested" to
> "measurement/measured".
>
> There are statistics boxes on your plots. Either remove them by redoing
> the plots or
> cover them with white boxes in PowerPoint.
>
> Slide 3:
>
> - I would change "Electron Compton scattering is one of the simplest and
> most
> fundamental reactions in QED." to "Electron Compton scattering is one of
> the most
> fundamental and the best theoretically founded reactions in QED.",
>
> - lose the arrows and number the diagrams instead,
>
> - begin from a new line "Compton scattering in a few GeV electron energy
> has not been
> tested experimentally."
>
> - change "Compton scattering in a few GeV electron energy has not been
> tested
> experimentally." to "Compton scattering in a few GeV electron energy has
> not been
> measured experimentally."
>
> - correct electon to electron in the line above
>
> - change "Precision test of Higher Order QED calculation" to "Precision
> measurement of
> Compton Scattering along with Higher Order Radiative Processes". You might
> also combine
> the last sentence from the bullet above with this sentence to read "The
> first precision
> measurement of Compton Scattering, along with Higher Order Radiative
> Processes, in a few
> GeV region."
>
> - move zero from subscript to superscript in "Validate systematic error
> for π0 lifetime
> measurement (PrimEx-II) ."
>
> Slide 5:
>
> - add an e at the end of "angle between two clusters in HyCal plan".
>
> Slide 7:
>
> - for consistency, move the listing of the cuts onto the plot as you did
> on the previous
> slide.
>
> Slide 8:
>
> - back ground ---> background
>
> Slide 13:
>
> Since the results are preliminary, I think it is safer to go with 3
> significant figures
> in the cross section results and one sig fig for the errors. Especially,
> remove the zero
> in Stat Error for Silicon to have 0.001(0.37%).
> Slide 14:
>
> I would phrase it as follows
>
> - Compton Scattering is one of most fundamental reactions in QED,
> - It was measured with high precision for energies ranging from 4.4 to 5.3
> GeV, - The
> measurement provides an excellent systematic error control for PrimExII
> experiment.
> - The extracted total cross section, together with radiative processes, is
> in agreement
> with theory prediction at level of error of 1.4% , 1.6%, 1.7% for Carbon
> (1 and 2) and
> Silicon targets respectively.
>
> You might want to add a bullet with your future plans like performing a
> deconvolution of
> the 1. and 2. type of processes, extracting the differential cross section
> for angles
> available in this experiment, and publishing.
>
> Stylistically, you may want to consider changing the background
> between the header and the footer on your slides to match your plots
> background. This
> may provide a cleaner feel to your presentation.
> This is not crucial. If you like what you have go ahead and use it.
>
> All in all, your presentation looks nice and crisp!
> Now all you have to do is to deliver it this way.
> One thing you need to do to do that is to find a room
> with a projector in the lab and take a look at your slides.
>
> When is your talk and when do you leave?
> Would there still be time for a practice talk?
>
> Let us know when you wake up.
> Pawel
>
>
>
>
>
>


-- 
Li Ye
Mississippi State University
757-291-9896
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