Advances in Nuclear Physics, Volume 27 (Advances in the - download pdf or read online

By J.W. Negele, Erich W. Vogt

ISBN-10: 0306477084

ISBN-13: 9780306477089

ISBN-10: 0306479168

ISBN-13: 9780306479168

This quantity includes significant articles, one supplying a old retrospective of 1 of the good triumphs of nuclear physics within the 20th century and the opposite offering a didactic advent to at least one of the quantitative instruments for realizing robust interactions within the twenty-first century. this article is appropriate just for complicated graduate classes in nuclear physics.

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Extra resources for Advances in Nuclear Physics, Volume 27 (Advances in the Physics of Particles and Nuclei)

Sample text

Maria Mayer was trying to understand the origin of the shell closures which she so convincingly demonstrated. She was also aware of the experimental data which Nordheim and Feenberg presented in favour of their schemes. ”. ” In some other place she said that she thought for a moment and answered “Yes and it explains everything”. In that paper, she considered the effect of a strong spin-orbit interaction on order and spacing of single nucleon orbits. She shows how in her scheme the observed shell closures are reproduced as well as most observed nuclear spins as presented by Nordheim and Feenberg.

This theory was used in pre-1949 years and could account for some important properties of nuclei, like symmetry energy. A particularly attractive feature of this theory was the clear distinction between favoured (“allowed”) and unfavoured (“super-allowed”) beta decays. It may be interesting to have a look at the SU(4) theory and at some of its predictions. 2. The Supermultiplet Scheme The SU(4) scheme is the first extensive application of group theory to nuclear physics. It is the first of a long list of groups which have been applied over the years to the theory of nuclear structure physics.

The re-emergence of the shell model raised again old arguments against the independent nucleon picture of the nucleus. The question asked was whether such a picture could hold in view of the short-range strong interaction between nucleons. At that time it was not known how singular this interaction really is. The new version of the model raised also a new problem - the origin of the strong spin-orbit interaction. Several attempts have been made to explain this effect but even now, 50 years later, the definitive answer is still missing.

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Advances in Nuclear Physics, Volume 27 (Advances in the Physics of Particles and Nuclei) by J.W. Negele, Erich W. Vogt


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