[Clascomment] OPT-IN: Measurement of the Spin and Parity of the Lambda(1405)

Volker Burkert burkert at jlab.org
Tue Nov 5 15:25:24 EST 2013


Hi Kei and Reinhard, 

Congratulations to another nice paper on the Lambda(1405). 
I think the article is very well written and I have only a couple minor comments for your consideration.

1) page 3, left column, line 13. The central values of the W bins are given but not the bin widths. Is it
 100 MeV as in previous paper? 

2) page 3, right column, line 8 from bottom. The sentence "The black points are the data ....hypothesis." 
is a repetition of the text in the caption to Figure 3.  I suggest to delete it in the text. 

3) page 5, left column, last paragraph. It seems to me the phrase ".... is most consistent with J^P=1/2^0, 
 and other combinations are less favored by the data." is to weak and does not support strongly enough 
the claim in the paper title "Measurement of the Spin and Parity of the Lambda(1405)"  or the claim in 
the abstract ".. that the Lambda(1405) has spin-parity J^P=1/2^-".  

Volker



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