[Clas12_verystrange] Xi1820 efficiency

[Johann Goetz]

Lei, what do you mean by vertex efficiency?

On Fri, Apr 6, 2012 at 5:13 PM, Lei Guo <lguo at jlab.org> wrote:

> I assume the vertex efficiency (Lambda-->ppi) is 0.7.
>

-- 
Johann <http://sites.google.com/site/theodoregoetz/>
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