[Clascomment] OPT-IN: First Measurement of Xiâ Polarization in Photoproduction

[Lei Guo]

Hi Igor!

Thanks for the comments. Regarding the model, your comments are consistent with what Kanzo Nakayama just told me today. He give me suggestions that I think will address your concern as well. We will implement it in the next couple of days.

Cheers!

Lei

Sent from my iPhone

> On Mar 12, 2018, at 19:57, Igor Strakovsky <igor at gwu.edu> wrote:
> 
> Hello Jason, Lei, and Brian,
> 
> That is really nice paper with nice new CLAS data.
> 
> There are several minor suggestions for your consideration.
> 
> 1) Your Intro is too long for the letter specifically that you are talking about low energies and there is no 
> bridge to high energy physics which you are presenting.
> 
> 2) The sources of theoretical curves on Figs 5 - 7 are unclear.
> 
> 3) One can possible to see that you use Refs [28,29] to compare a theory with your data then it would be good to have a description what this theory is about.  
> 
> 4) Meanwhile, the sensitivity of new CLAS data to different theoretical approaches, as Figs 5-7 show, is 
> very low.  Then the question is about an impact of new measurements to identification the hyperon 
> excitation spectra and  discern a photoproduction mechanism which is a goal of your paper as abstract 
> says.
> 
> 4) Let me suggested to make clear about the limitation of the model [28,29], which has been designed 
> and tested against the cross sections and invariant masses for photon incident energies of only up to 
> about 4 GeV [28,29]. Beyond  ~4 GeV, it is stretching the model.
> 
> There are my 2c
> Igor