|
| Experiment | Theory |
| Proton charge radius (fm) | 0.8775 (51) [5] | 0.877500 |
|
| 0.8768 (69) [9] |
|
|
| 0.879 (6) [10] |
|
|
| 0.84184 (56) [11] |
|
| Proton magnetic radius (fm) | 0.777 (16) [5] | 0.832087 |
|
| 0.876 (19) [12] |
|
|
| 0.848 (6) [13] |
|
| Proton mass radius (fm) | - | 0.809988 |
| Proton PP radius (fm) | - | 0.811174 |
| Neutron mean-square charge radius (fm2) | −0.1161 (22) [5] | −0.116100 |
|
| −0.1149 (35) [14] |
|
|
| −0.134 (3) [15] |
|
| Neutron magnetic radius (fm) | 0.862 (9) [5] | 0.759587 |
| Neutron mass radius (fm) | - | 0.767979 |
| Neutron PP radius (fm) | - | 0.766703 |