Maid2008 single-Q2 analysis:  S31(1620) helicity amplitudes in units of 10^(-3) GeV^(-1/2)

 Update from 2007 analysis with data from K. Park et al, Phys. Rev. C 77, 015208 (2008).

  Q2           A1/2           A3/2              S1/2            
 1.720    19.81    0.00      0.00    0.00      3.06    0.00
 2.050    10.55    2.25      0.00    0.00      1.83    0.00
 2.440     5.87    1.85      0.00    0.00      0.98    0.00
 2.910     8.62    1.54      0.00    0.00      0.45    0.00
 3.480     0.08    0.00      0.00    0.00      0.17    0.00
 4.160     0.02    0.00      0.00    0.00      0.05    0.00


the helicity amplitudes data should be quoted as: 
L. Tiator, D. Drechsel, S.S. Kamalov, M. Vanderhaeghen, Chinese Phys. C 33, 1069 (2009).