[d2n-analysis-talk] Beta ~ 0 Events

[Brad Sawatzky]

On Sat, 05 Feb 2011, David Flay wrote:

> During the meeting yesterday you asked me about the percentage of beta
> ~ 0 events to the total event number.  I re-evaluated this ratio for
> all runs (and binned by momentum) and the result is on the order of
> ~2.5% across all momenta.  The errors on each momentum bin range from
> 0.05% at the lowest p and up to 0.15% at the highest p.

The fact that it is so flat is curious...

The trigger rate, reals rate, and background rates all changed by a huge
factor over that momentum range, yet the probability of a 'bad' events
stayed constant at 2.5 out of every 100 triggers.  That should be
telling us something, but I'm not sure what right now...

-- Brad

-- 
Brad Sawatzky, PhD <brads at jlab.org>  -<>-  Jefferson Lab / Hall C / C111
Ph: 757-269-5947  -<>-  Fax: 757-269-5235  -<>- Pager: brads-page at jlab.org
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  discoveries, is not "Eureka!" but "That's funny..."   -- Isaac Asimov