[ee] draft slides

[Pawel Nadel-Turonski]

Hello Everyone,

Thank you for all the comments both on and off the list! I tried to 
include all of them in the updated version.
https://userweb.jlab.org/~turonski/tcs/proposal/TCS_PAC39_v1.pdf
In the process I also finally learned how to use the equation editor in 
OpenOffice 3.4. :)
Please let me know if you have further suggestions! I will still try to 
add a backup slide or two. Please note that I will have to upload the 
slides to the JLab Indico server before 5 pm on Monday. The presentation 
will be at 9:30 on Tuesday.

Best Regards,
Pawel

On 6/15/2012 2:16 PM, vguzey at jlab.org wrote:
> Hi Pawel,
>
> The slides look very nice!
> I have several comments and suggestions:
>
> 1) I agree with Puneet that it would be helpful to give the explicit
> expression (formula) for TCS and also maybe for J/Psi production in the
> beginning of your talk, possibly in slide 2 or slide 3.
>
> 2) Slide 3: global analysis -> global analyses
>
> 3) In slide 4, I would recommend to decrease the size of DIS and DY
> figures and ADD corresponding figures for DVCS and TCS so that one does
> not have to wait until slide 7 to see the TCS graph.
> Also, it is easier to appreciate the timelike-spacelike correspondence if
> you present the graphs for DVCS and TCS.
>
> 4) Slide 5 (right lower corner). I think that the DVCS cross section
> probes both Re and Im parts squared.
>
> 5) Slide 8: The equation in this slide is for DVCS! It is not consistent
> with the graphs in this slide and with equations in slides 9 and 10
> (e.g., the cross section in slide 8 does not depend on the angle phi).
>
> 6) Slide 8: when you discuss projection of the interference term, it is
> useful to explain that this means taking moments with respect to the angle
> phi which is defined in the next slide, just to indicate what is done in
> practice (lepton charge conjugation may sound too abstract).
>
> 7) Slide 9: BH is large not only for small theta, but also for theta close
> to pi.
>
> 8) Slide 10: I am not 100% sure that the phrase on the top of the slide
> is technically correct: "To leading order, in terms...".
> These are most general helicity amplitudes which receive contributions at
> all orders; at leading order some of them (changing parton helicity) can
> be simply zero. So, I would simply write:
> "In terms of helicity amplitudes:"
>
> My other comment to this slide that the second equation in slide 10 is
> written at the leading accuracy (in the handbag approximation).
> By the way, in this approximation all other helicity amplitudes
> (Mtilde+(0-) and Mtilde(+-) are zero so only Mtilde(--) survives.
>
>                               Good luck with the presentation!
>                               Vadim
>
>
>
>
>
>> Hello Everyone,
>>
>> I was hoping to circulate a draft of the slides before the presentation
>> at the CLAS collaboration meeting this Wednesday, but I only had them
>> ready at the last moment. The reason for this was not only that I was
>> lazy, but also that the disk in my netbook died. You can find the
>> current version of the slides, with only minor changes since Wednesday,
>> here:
>> https://userweb.jlab.org/~turonski/tcs/proposal/TCS_PAC39_v0.pdf
>> One comment during the presentation was to make the importance of the
>> J/Psi measurement for the TCS analysis clearer. I am still thinking how
>> to do that in a compact way. Please let me know if you have comments or
>> suggestions. I hope to have the next version ready this weekend. The PAC
>> presentation will be on Tuesday.
>>
>> Best Regards,
>>
>>       Pawel
>>
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