[Clas12_verystrange] added

[Lei Guo]

Hi, Michael,

I added your new plots for the Xi(*)'s differential cross section in  
Section VI under B (measurement for XI* production, xiEx.tex). Please  
check if I wrote about it correctly when you get a chance.

I committed the change to svn, but the version of proposal I submitted  
did not include these changes. I'll find out if it can be replaced.

Thanks!

Lei
On May 4, 2012, at 6:40 PM, Michael Dugger wrote:

>
> -----------------
>
> You might get this email twice. If so, I'm sorry about the  
> redundancy. When I sent the previous email I got an error message.
>
> -----------------
>
> Lei,
>
> Obviously I missed the deadline :(
>
> I have a couple of plots:
>
> Differential cross section for Xi- are at
> http://www.jlab.org/Hall-B/secure/clas12/omegaMinus/ASU/counts/diffCsCascadeM.eps
>
> Differential cross section for Xi-(1530) are at
> http://www.jlab.org/Hall-B/secure/clas12/omegaMinus/ASU/counts/diffCsCascadeM1530.eps
>
> The differential cross sections are for E_gamma = 9.25 GeV.
>
> The number of counts does not vary much with respect to photon  
> energy. However, the counts are very much dependent on the center-of- 
> mass angle.
>
> For both reactions the particles seen were
> K+ K+ pi-
>
> I locked the total cross section to be 15 nb for the Xi- and 6 nb  
> for the Xi-(1530) and normalized the total number of counts to be  
> 0.9M for the Xi-, and 270k for the Xi-(1530), so that those numbers  
> are consistent with the proposal.
>
> Take care,
> Michael
>