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cragar
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What causes the neutron to have a magnetic moment , and is it paramagnetic or diamagnetic.
cragar said:What causes the neutron to have a magnetic moment , and is it paramagnetic or diamagnetic.
Already in the "naive" constituent quark model, relativistic corrections spoil this simple picture. Note that this "naive" model predicts rather well the ratio of the magnetic moments. But for absolute values, the relativistic corrections from this model do not agree with observations. This is not a simple story, and how the different contributions from quarks spin, gluons spin, and orbital angular momentum add up still under investigation.SpectraCat said:Perhaps it is just that there are always two identical quarks in either of these particles (neutron = 1 "up" and two "down" quarks, while a proton = 2 "up" and 1 "down"), then those two just pair their spins in the anti-symmetric "singlet" state according to the Pauli exclusion principle, and the spin of the remaining quark gives the overall spin of the particle.
ansgar said:the neutron consists of electrically charged particles, quarks, and it has a finite "size" (or rahter a density distrubition)
only materials are paramagnetic, diamagnetic and so on...
cragar said:by materials you mean stuff with atoms , so neutrons are neither paramagnetic or diamagnetic.