[Clascomment] L1405 paper

Biplab Dey biplabdey at yahoo.com
Tue Jan 1 01:15:56 EST 2013


Hi, Kei, Reinhard,
Congratulations on the paper -- clearly this's a very thorough analysis and lots of hard work went into it.  My only slight concern is that at least this paper doesn't show too much of angular analysis and mostly ``assumes'' that L1405 -> Sigma Pi is pure S-wave. Are you going to show later that there is negligible P-wave in follow up papers? Also, when there are a bunch of nearby S-wave contributions, as you claim is the case here, it's usually conventional to use the K-matrix formalism, instead of using the BW form.It's not too difficult -- just the form of the amplitude changes and Anisovich et al has the standard formulas.

One minor comment regarding Fig. 2 -- since your main impact result is that the charged modes have different lineshapes and thereby BF's, it might be a good idea to change the uniform 1/3 BF to each mode as shown here, or make a comment to draw the reader's attention. Also, in the 4th column, I believe Fig. 5a/5b should be changed to 6a/6b. For Figs. 3 and 4, why not make them into subfigures as well?
Once again, very nice work and good luck ahead at Phys. Rev..
Cheers,
-Biplab
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