[g13] MENU proceedings draft (rather urgent-ish)

[Pawel Nadel-Turonski]

  Hi Daria,

One day is indeed not much time to work on a paper or make major 
changes. However, let me first make two  general comments. I will try to 
give you more details later.

In terms of the figures, I think one needs to be a little careful. After 
all, this is going to be the first publication of many of these results, 
sometimes even prior to the beginning of the CLAS review process. It is 
good that you mark them as preliminary, but still maybe less is more? 
Perhaps your goal should be to show some examples illustrating the 
quality of the CLAS data, and your analysis in particular, but not 
necessarily try to include every bin from each channel?

The discussion about the goals of the current CLAS N* program could 
perhaps also be made a little more clear. Certainly, the complete 
measurement is an important component, and having the amplitude level 
information would be interesting even if the uncertainties were 
considerable. However, such a measurement is only possible to perform 
for the K Lambda channel, which couples to a limited number of 
resonances. It would be very nice if one of them happens to be of the 
"missing" variety, but it will not give you the full picture. The reason 
CLAS measures a large number of observables for many channels is that 
they can provide input for coupled-channels analyses, for instance 
performed by EBAC at Jefferson Lab (which you could mention). These can 
then tell you which quark model gives the best description of the 
spectrum, and perhaps discover if there are strong quark correlations in 
the nucleon, something that is very difficult to learn from, for 
instance, DIS. The coupled-channels calculations are also important for 
non-strange channels, including yours, when you go to higher W, where 
simple PWA (such as SAID) no longer performs very well.

Cheers,

     Pawel


On 9/30/2010 1:59 PM, Daria Sokhan wrote:
> Dear everyone,
>
> Please a draft of my MENU conference proceedings paper
> "Recent N* results from photoprouction experiments at CLAS" at the link below:
>
> http://www.jlab.org/~daria/MENU_Daria_proceedings.pdf
>
> In view of Pawel's recent suggestions I am sending this around the g13 group
> first, before e-mailing it round the working group, and would be
> grateful for any quick suggestions! A couple of things to note:
>
> * The deadline is officially tomorrow -- I'm at a summer school this
> week and was away for the three weeks prior, so running very late with
> this, but I will email the journal tomorrow to ask whether I can
> submit it next week. I would like to send it to the working group
> tomorrow if at all possible, though.
>
> * The paper is supposed to be 4 pages long (currently it is 5), but as
> my talk was a review one I am having real trouble fitting all the
> results plots in. The graphs are quite small at the moment. I would be
> very very grateful for any suggestion as to what I could do to get it
> down to 4 with legible graphs! I will probably have to cut the text,
> too.
>
> Many thanks and apologies for the short short notice!
>
> Daria
>
>
> --
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Daria Sokhan
> Institut de Physique Nucleaire
> Bat 100 - M053
> Orsay 91406                              tel: +33 1 69 15 64 10
> France                                      fax: +33 1 69 15 64 70
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
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