|average 1,2,3||30°||average the targets||-71.7±0.1±2.0||3.6|
The energy measured (HALLA:p) fluctuated on the first Chart with an amplitude 0.2MeV and has a shift +0.4MeV over experiment energy 1230MeV. On the second Chart (when dipole problem in Arc was fixed) it seems the energy measured (HALLA:p) has only fluctuation around 1230MeV with no shift.
At the Wien filter angle 30deg. and the beam energy 1230MeV we have in
the HallA 78% of 100% longitudinal polarization (at the Wien angle
54deg.). If we scale
Moller result with the beam polarization at 54deg. = 90.58% (see Moller
results from Spin Dance 01/13/09) we have 90.58*0.78=70.65%.
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