Berkeley high-Z capture yield determinations

[Tom Banks <tbanks@socrates.berkeley.edu>]

Dear Brendan et al.,

concerning the Berkeley determination of the high-Z capture yields... In
the *present* incarnation of my software, the relevant histograms are as
follows:

  capture_search_mustop_precount = number of mustops to be inspected
  (before electron suppression cuts)

  capture_cand_count = number of capture candidates with at least an EH
  pixel, from rightward search (time after the mustop)

  capture_control_cand_count = number of capture control events with at
  least an EH pixel, from leftward search (time before the mustop)

  capture_cand_EVH_count = number of capture candidates with an EVH pixel,
  from rightward search (time after the mustop)

  capture_control_cand_EVH_count = number of capture control events with
  an EVH pixel, from leftward search (time before the mustop)

To calculate e.g. the EVH capture yield, I would write

 Y = (capture_cand_EVH_count -
      capture_control_cand_EVH_count) / capture_search_mustop_precount

I emphasized above that these are the histogram names in the *present*
version of the Berkeley software, because I am under the impression that
Runs 9 and 10 may have been using a version of my impurity-finding module
that dates back to the start of Run9--perhaps Fred can day if this is
true?  If so, then I can always check the CVS archive for the names
corresponding to the version that you used; the names should be basically
similar, though.

Tom