[G14_run] [EXTERNAL] g14 meeting tomorrow?

[Alessandra Filippi]

Hi all,
fine for me if we postpone the meeting to next year.

I've been chatting lately with Derek on the code to extract the 
helicity angle, and we realized that there are some critical points in the 
usage of Lorentz vectors and the metrics. So, his code cannot simply
be taken as-is, but in my case some extra signs must be taken care of when 
performing the Lorentz boost to center of mass reference systems.
The final result is that the original extraction, that led to the 
wrong-symmetry Pz, is correct and consistent with what I get from his 
code when the correct signs for the boost vectors are used.
This means that some more thoughts are needed on the Roberts' equation.

I wish you all a Merry Christmas and Happy New Year!
      Alessandra




On Wed, 22 Dec 2021, Annalisa D'Angelo wrote:

> Dear All,
>
> since JLAB is closed tomorrow, I was not planning to meet, unless there is 
> someone willing to show some progress in the analysis.
>
> I will be happy to send the zoom link should anyone ask for the meeting.
>
> In receive any feedback, I wish you all and your family a Merry Christmas and 
> a Happy New Year!
>
> See you next year
>
> All the best
>
> Annalisa
>
> -- 
> ================================================
> Prof. Annalisa D'Angelo
> Dip. Fisica, Universita' di Roma "Tor Vergata"
> Istituto Nazionale di Fisica Nucleare
> Sezione di Roma Tor Vergata, Rome Italy
> email:annalisa.dangelo at roma2.infn.it
> Jefferson Laboratory, Newport News, VA USA
> Email: annalisa at jlab.org
> Tel: + 39 06 72594562
>
>
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