[G12] Lambda Total Cross Section update.

Lei Guo lguo at jlab.org
Sat Aug 20 12:11:05 EDT 2011


On Aug 20, 2011, at 11:27 AM, Johann Goetz wrote:

> MK,
> Do you know how often you see two of the tracks in the same sector  
> for p pi+ pi- in the data?
>
> This ratio to total number of events seen is very interesting with p  
> K+ pi-. I get 20% of the data events to have the p pi- in the same  
> sector, but its 84% in simulations without modelling the trigger  
> which required three tracks in separate sectors below 3.6 GeV beam  
> energy.


HI, JOhann,

For the 20% of the data you have p pi- in the same sector, do you mean  
only the events within the lambda range, or all skimmed p K+ pi- data?

Is the 84% simulation what people see other data set? Could it be  
dependent on how you simulate them?

Lei



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