Moller Measurements for E06-014 d2n, Feb - Mar 2009

Last updated: Thu, 12 March 2009 moller@jlab.org
Here a summary is given of the Moller measurements done for E06-014 d2n running in February - March 2009.

The Moller results are presented in a table below and on a plot . 

  #    date day      Moller       Moller with HALLA:p  Syst.err.  WienF 
                                   
  --------------------------------------------------------------------- 
  1  02.07    2  -75.39 +/- 0.11    -79.40 +/- 0.11    +/- 2.0%    30.0
  2  02.09    4  -71.62 +/- 0.13    -71.70 +/- 0.13    +/- 2.0%    30.0
  3  02.11    6  +73.38 +/- 0.15    +74.72 +/- 0.15    +/- 2.0%    23.0
  4  02.19   14  -74.05 +/- 0.11    -74.49 +/- 0.11    +/- 2.0%    23.0
  5  03.03   26  -80.32 +/- 0.12    -79.65 +/- 0.12    +/- 2.0%    30.0
  6  03.06   29  +65.29 +/- 0.11    +63.93 +/- 0.11    +/- 2.0%   -18.0  
  7  03.12   35  -60.79 +/- 0.13    -60.79 +/- 0.13    +/- 1.7%    21.2
* day - day of experiment running
* Moller with HALLA:p - Moller results corrected on beam energy fluctuation * WienF - Wien filter angle, deg

Measurement 2
1 pass.

Measurement 3
Mini spin dance. Wien angle 23deg was choosen.

Measurements 6 and 7
4 passes.

Measurement 7:
The beam energy was stable (fluctuation was less than +/-0.1MeV). The beam energy correction for the Moller results is not needed. Systematic error is 1.7%

The details of the measurements can be found here .