Nuclear Shell

Nuclear Shell

 

According to the shell model of the nucleus, each nucleon in the nucleus is in a certain quantum state, and no more than (2j + 1) nucleons (j is the spin of the nucleon) that form a nuclear shell can be in each state with a given energy (on an energy level). Nuclei in which the nucleonic shells are completely filled are called magic nuclei. (For more details, see and MAGIC NUMBER NUCLEI.)

References in periodicals archive ?
In the nuclear shell model, successive levels alternate in parity, and so parity eigenstates are linear combinations of either even (|nh[omega]>, n even) or odd (|nh[omega]>, n odd) shell states.
The magnetic shell density is narrower and weaker than the nuclear shell density.
Worldwide, the availability of exotic ion beams is providing new insight on the evolution of nuclear shells far from beta stability, advancing our understanding of the nuclear force.
The Brightsen model builds on the early cluster models of the Resonating Group Structure of John Wheeler [2] and the Linus Pauling Close-Packed Spheron Model [3], which predict mathematically that the wave function of a composite nucleus can be viewed quantum mechanically as a combination of partial wave functions that correspond to the multiple ways nucleons (protons, neutrons) can be distributed into close-packed clusters, thus rejecting the standard model Hartree-Fock formalism of average field interactions between independent nucleons in nuclear shells.
We had planned specific locations where we would set up our guns to blast the Soviet tanks with nuclear shells as they came through the gap.

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