What is the mean square charge radius of the neutron actually equal to?

Nucleon electromagnetic form factors

“…29 Thus far, the detection inefficiency due to electroproduction has been established at less than 5 %, clearly much smaller than required to explain the discrepancy in the data. Recently, inclusive quasi-elastic scattering of polarized electrons off a polarized 3 He target was measured 30 in Hall A at JLab in a Q 2 -range from 0.1 to 0.6 (GeV/c) 2 . This experiment will provide an independent accurate measurement of G M n in a Q 2range overlapping with that of the ELSA and Mainz data.…”

“…Data: diamonds 25 , stars 26 , circle 24 , large triangle 27 , triangles. 28 Recently, inclusive quasi-elastic scattering of polarized electrons off a polarized 3 He target was measured 30 in Hall A at JLab in a Q 2 -range from 0.1 to 0.6 (GeV/c) 2 . This experiment will provide an independent accurate measurement of G M n in a Q 2range overlapping with that of the ELSA and Mainz data.…”

“…33 These results have not been corrected for rescattering or nuclear medium effects. 21,22 , square 23 , cross 20 and diamond 33 ) results for G E n as a function of Q 2 . The open circles depict the results of Platchkov et al 32 for the Paris potential, the shaded area the systematic uncertainty due to the choice of NN-potential.…”

“…There has been considerable debate over the interpretation of the neutron charge radius. 2,3 The charge radius can be split into two components, one of which (the so-called Foldy 4 term) is related to the magnetic moment, not to the rest-frame charge distribution. However, Isgur 5 and Bawin and Coon 6 have shown that this Foldy term is exactly canceled by a contribution from the Dirac form factor, so that the charge radius is indeed determined solely by the rest-frame charge distribution.…”