We continue to try to understand the tagging efficiency of our photon beam. Using the
latest measurements yesterday afternoon with the Pb block immediately downstream of the tagger,
the efficiency determination is approximately 93%. We are trying to understand the remaining
fraction. For this purpose, we would like to have a reliable estimate of the contribution due to
Moller electrons in the spectrometer.
Anyone with such a calculation, pass it on so we can make better estimates of our
expectations for the measured efficiencies.
Thanks, Elton.