[Halld-physics] Follow-up: Eta/eta-prime meeting

[Georgios Vasileiadis]

Dear all,

During the last eta/eta' meeting I presented some slides which can be 
found here:

https://halldweb.jlab.org/doc-private/DocDB/ShowDocument?docid=3996

We had a discussion about the differences between the two histograms on 
slide 6 (the black distributions should be the same and they are not).

This problem was not due to a scaling factor as we suspected. There was 
a bug in the script that I am using to analyze the generated events. I 
was accidentally cutting away some of the generated events for the eta 
pi0 pi0 Monte Carlo. After correcting this bug the two distributions are 
identical.

This also means that the efficiency (and therefore the cross section) 
that was extracted for the eta pi0 pi0 final state was wrong. I will 
correct the relevant files and update the cross section results accordingly.

Kind regards,
George



On 6/5/19 2:45 μ.μ., Simon Taylor wrote:
>
> Hi, everyone.
>
>
> We will be having our regular eta/eta-prime meeting at 3:00 pm today, 
> CCL207.  The meeting page can be found here:
>
> https://halldweb.jlab.org/wiki-private/index.php/Eta/Eta-prime_Meeting_2019-05-06
>
>
> Simon
>
>
> _______________________________________________
> Halld-physics mailing list
> Halld-physics at jlab.org
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