The nuetron has a known substructure of three charged quarks with net charge 0. Still, these quarks cannot occupy the same space simultaneously, so neutrons should have an electric field surrounding them. Has any work been done to find the properties of this field? For example, what is the electric field field strength distribution around the newtron? Does it have a magnetic field around it? If so, what is its field strenght distribution? (Note that I realise the magnetic field strength is relative to the motion of the observer.) EDIT: Corrected slips of the pen.