[Clascomment] OPT-IN: A study of the P11(1440) and D13(1520) resonances from CLAS data on ep â eâ² pi+ pi â p

[mokeev at jlab.org]

  Dear Reinhard,

 Thank you very much for your comments!

 Please find attached updated paper version as of May 10th 2012 and the
responses on your suggestions below:


> Hello Viktor et al.,
>
> Sorry for the late reply about your paper "A study of the P11 and D13
> resonances from CLAS data on..."  dated 5-7-12.  It is evidently the
> result of a lot of careful work on your part.  I have just a few
> suggestions to improve the wording in some places.  The scientific
> conclusions seem well-justified as far as I can tell.
>
> page 2, column 2, line -4 from bottom:  use "This kinematic DOMAIN is
> of...."
>

   Done.
> page 3 paragraph 1, line 6: grammar problem.  Use "The CLAS detector
> HAS PROVIDED THE DOMINANT PORTION OF ALL DATA on meson
> electroproduction..."

   Done.
>
> page 3, col 1, para 3, line 5: use "These are THE most extensive data
> sets..."

  Done.

> page 3, para 2, line 13: I think you want the words "test whether"
> instead of the words "verify if" here.

   Done.

>
> The next sentence "Is is the model independent...parameters" seems to
> be out of place here, and actually doesn't really make sense.  It adds
> nothing to the discussion that I could see, so I recommend deleting
> this sentence.

   Done.
> page 3, col 2, para 4, line 4:  grammar problem:  replace "possible to
> access" with "possible access to"

  Done.


> page 13 & 14,  Fig 4, Fig 5:  I would remake these figures.  There are
> so many nearly-identical points and lines that the whole of the
> figures are quite "murky" and hard to read.  There must be some way to
> clear up the figures, perhaps by plotting only the two extreme cases
> in each panel.

  It is the most difficult part. The problem is we have no so-called
"extreme"  curves/points. We selected in the fit equally good full
pi^+pi^-p computed cross sections, as described in Section III and for
each selected in the fit cross section evaluated resonant/non-resonant
contributions. All selected in this way curves are EQUAL. Even
graphically, we have no "extreme" curves. If some computed cross section
point is "extreme" at some particular experimental grid point, in
becomes not "extreme" in the other grid point.

  Please revise the updated version of Figs 4,5 in the attached file and
let me know your opinion. Also let me know in a case of any further
suggestions.

    Thank you for your efforts!

                  Best Regards,
                                                     Victor




>
> I did not get a chance to read every paragraph in detail, sorry.
> Overall, it looks like a very nice result.
>
> Reinhard.
>
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