[Clas_hadron] abstract for NSTAR2013

[burkert]

Hi Kei,

It is certainly a very nicely written abstract.

The only thing I want to mention, and it occurred to me only after 
submission of the paper, is that the threshold behavior of the Sigma-pi 
cross section does not seem to be consistent with the expected s-wave 
decay of the Lambda(1405) as a J^P=1/2^- state. Similar to the decay of 
the S11(1535) resonance into N-eta, which is also a J^P=1/2^- state and 
close to threshold which shows a very rapid rise at threshold (know as 
"s-wave threshold behavior"), I would expect to see a similar rapid rise 
for the Sigma-pi if the Lambda(1405) were located close to Sigma-pi 
threshold. It may be worthwhile to a bit more about this conclusion.
For the abstract, I suggest you want to soften your statement on the 
"opening of phase space" somewhat.

BTW, your paper got an immediate citation by Oset et al. 
(http://arXiv.org/abs/arXiv:1301.5741), who show an excellent fit to the 
Sigma-pi0 data with two I=0 poles at 1385 Mev and 1419 MeV.

Best regards,
Volker









    On 1/25/13 8:17 PM, Kei Moriya wrote:
>
> Dear Spectroscopists,
>
> I am planning to give a talk at the upcoming NSTAR2013
> conference, and have attached my abstract
> (I am not sure if I can upload documents to the CLAS
> server any more, so please excuse this non-standard method).
>
> The talk will be about the g11a Lambda(1405) results
> that I have been working on. Comments and recommendations
> are very welcome.
>
> Thank you,
>     Kei Moriya
>
>
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> Clas_hadron at jlab.org
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