[G14_run] Tsuneo's draft slides for Spin2016

Franz Klein fklein at jlab.org
Tue Sep 20 17:16:41 EDT 2016


Tsuneo,

Andy responded already to most issues. You really have to present all 
three analysis methods on equal footing!

I have a few additional comments:

to slide 1: besides the fact that we did not collect much statistics in 
g14, it is impossible to measure all '16 spin observables' (actually 15) 
in g14 with long. polarized target. Also, for this reaction (pi^- p) we 
cannot measure any recoil polarization observables!

to slide 3: we did NOT have a polarized neutron target (it was polarized 
H and/or polarized D): the quasi-free neutron data were inferred from 
this - I think we discussed this issue several times in the g14 group!  
(To what extent our final results are from quasi-free neutron reaction 
is also not clear: the cuts reduced FSI and D-state contributions but we 
never claimed that this was free neutron data - even if I called the 
extrapolation to p_miss=0 the 'pure E asymmetry').

to slide 20: your error table is correct (sorry, I screwed up: I used 
the combined systematic error for the 3 analyses from an earlier version 
where some contributions were missing). I correct this in the analysis 
note!

Cheers,

Franz



On 09/20/2016 12:08 PM, Tsuneo Kageya wrote:
> Dear,
>
>   I am attaching a pdf file for my talk on Spin2016 (my talk will be
> on Tues. the next week).   My talk has 15 minutes long and 5 min. of
> discussion time.
>
>   For the systematic error table, the numbers are slightly different
> from those in the analysis note; I am trying to discuss them
> with Franz.
>
>   Any comments and suggestions are welcome.
>
>      Regards, Tsuneo Kageya.
>
>
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> G14_run at jlab.org
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