We have also measured the 47Ca+1 asymmetry in coincidence with
events firing the eMCP.
These are not shakeoff electrons: beta- decay of course produced 47Ca+1
without an atomic shakeoff electron, so the events that come in times
consistent with 47Ca+1 must be from a beta- triggering the eMCP, or
from some other prompt-time event like a subsequent 47Ca deexcitation gamma.
The beta produces a 47Ca+1 asymmetry dominated by Bnu, as the Z position of the
recoil in such a geometry is the opposite fo the neutrino direction. 
We have simulated these eMCP-47Ca+1 events assuming a beta- triggers the
eMCP, and find Bnu_exp= ....... Since Bnu=+-.46 for this decay, this
is consistent with about half the events being from gammas which do not produce
an asymmetry.
This also determinates the absolute sign of our atomic polarization
(we do not have a measure of the absolute sign of the circular polarization.)