Atomic Electron Motion for Möller Polarimetry in a Double-Arm Mode

Abstract

We analyse an effect of electron Fermi motion at atomic shells on the accuracy of electron beam polarization measurements with a Möller polarimeter operating in a double--arm mode. It is demonstrated that the effect can result in either {\it increase} or {\it decrease} of the measured polarization depending on the detector positions. The effect is simulated for the Möller polarimeter to be installed at CEBAF Hall A.

LaTeX, 7 pages, 4 postscript figures