An atomic nucleus can be considered a set of two‐nucleon systems. What are the forces between these pairs? How do protons and neutrons differ and how are they similar? Studies during the past three decades have given some answers and indicated which new kinds of experiments are likely to be most useful.
DETERMINATION OF THE fundamental law of force between two nucleons has occupied many physicists for the past three decades. Because the proton and electron have obvious similarities (elementarily, spin of 1/2, equal‐but opposite electric charge, Fermi statistics, antiparticles) the derivation of a nuclear “Coulomb’s law” would seem to be a just reward for working in this area. As we have rather slowly and laboriously learned, however, simplicity appears to be inversely proportional to some power of the coupling constant.
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More about the authors
Malcolm H. Mac Gregor,
Lawrence Radiation Laboratory at Livermore.
With strong magnetic fields and intense lasers or pulsed electric currents, physicists can reconstruct the conditions inside astrophysical objects and create nuclear-fusion reactors.
A crude device for quantification shows how diverse aspects of distantly related organisms reflect the interplay of the same underlying physical factors.