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  5. Volume 5, Issue 1 (2017)
  6. Effective Algorithm for Calculation of P ...

Computational Science and Techniques

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Effective Algorithm for Calculation of Protons and Neutrons Distributions in Atomic Nucleus Shells
Volume 5, Issue 1 (2017), pp. 519–528
Algirdas Deveikis  

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https://doi.org/10.15181/csat.v5i1.1572
Pub. online: 28 December 2017      Type: Article      Open accessOpen Access

Received
17 September 2017
Accepted
21 December 2017
Published
28 December 2017

Abstract

This paper presents the protons and neutrons distributions in atomic nucleus shells calculation algorithm which may be used for ab initio no-core nuclear shell model computations. The problem of enumeration of many-particle states is formulated on energetic basis instead of application of the traditional scheme for states classification. The algorithm provides calculations of protons and neutrons occupation restrictions for nuclear shells for an arbitrary number of oscillator quanta. The reported results show that the presented algorithm significantly outperforms the traditional approach and may fit the needs of state-of-the-art no-core shell model calculations of atomic nuclei.

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Keywords
atomic nuclear shell model harmonic oscillator basis antisymmetric many-particle states combinatorial optimization

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