[d2n-analysis-talk] Pion Rejector E/p Problem

[Brad Sawatzky]

On Wed, 24 Nov 2010, David Flay wrote:

> So, as I was making some plots for the d2n status report just now, I've
> noticed an issue: the E/p plot shows a very large spike at ~0... see the
> attached plots -- for 4-pass, p = 0.60 GeV and 5-pass, p = 1.70 GeV.

E/p == 0 can only happen if:
  E == 0 (so, look at the Energy histo), or
  p == 0, and the code traps the potential division by zero, filling (or
          leaving) the E/p variable set to zero.  (So look at the
          momentum histo).

-- 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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