fizyka: Shape of the atomic nucleus

A surprising non-spherical expectation for the shape of the nucleus originated in 1939 in the spectroscopic analysis of the quadrupole moments while the prolate spheroid shape of the nucleon arises from analysis of the intrinsic quadrupole moment.

The shape of the atomic nucleus depends on the variety of factors related to the size and shape of its nucleon (proton or neutron) constituents and the nuclear force holding them together. The spatial extent of the prolate spheroid nucleon (and larger nuclides) is determined by root mean squared (RMS) charge radius of the proton, as determined mainly by electron and muon scattering experiments, as well as spectroscopic experiments. An important factor in the internal structure of the nucleus is the nucleon-nucleon potential, which ultimately governs the distance between individual nucleons, and the radial charge density of each nuclide. The charge density of some light nuclide indicates a lesser density of nucleonic matter in the center which may have implications for a nucleonic nuclear structure. A surprising non-spherical expectation for the shape of the nucleus originated in 1939 in the spectroscopic analysis of the quadrupole moments while the prolate spheroid shape of the nucleon arises from analysis of the intrinsic quadrupole moment. The simple spherical approximation of nuclear size and shape provides at best a textbook introduction to nuclear size and shape. The unusual cosmic abundance of alpha nuclides has inspired geometric arrangements of alpha particles as a solution to nuclear shapes, although the atomic nucleus generally assumes a prolate spheroid shape. Nucli…

Kategoria: fizyka

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