Effective algorithm for calculation of protons and neutrons distributions in atomic nucleus shells

Algirdas Deveikis


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.

DOI: 10.15181/csat.v5i1.1572


Barrett, Bruce; Navrátil, Petr; Vary, James (2013). „Ab initio no core shell model“. Progress in Particle and Nuclear Physics, 69: 131–181.

Basdevant, Jean-Louis; Rich, James; Spiro, Michel (2004). Fundamentals in nuclear physics. New York: Springer-Verlag.

Caprio, Mark; Maris, Pieter; Vary, James (2012). „Coulomb-Sturmian basis for the nuclear many-body problem“. Physical Review C, 86: 064301.

Dikmen, Erdal; Lisetskiy, Alexander; Barrett, Bruce; Maris, Pieter; Shirokov, Andrey; Vary, James (2015). „Ab initio effective interactions for sd-shell valence nucleons“. Physical Review C, 91: 034312.

Fedurtsya, Anton; Deveikis, Algirdas (2011). „Neutronų ir protonų pasiskirstymo atomo branduolio sluoksniuose skaičiavimas“. Informacinės technologijos (IVUS 2010): 37–40.

Heng, Taihua; Vary, James; Maris, Pieter (2017). „Ab initio no-core properties of 7Li and 7Be with the JISP16 and chiral NNLOopt interactions“. Physical Review C, 95: 014306.

Maris, Pieter; Aktulga, Metin; Caprio, Mark; Ҫatalyürek, Ümit; Eg, Edmont; Oryspayev, Dossay; Potter, Hugh; Saule, Erik; Sosonkina, Masha; Vary, James; Yang, Chao; Zhou, Zheng (2012). „Large-scale ab initio configuration interaction calculations for light nuclei“. Journal of Physics: Conference Series, 403, 1: 012019.

Navrátil, Petr; Vary, James; Barrett, Bruce (2000). „Large-basis ab initio no-core shell model and its application to 12C“. Physical Review C, 62: 054311.

Shin, Ik; Kim, Youngman; Maris, Pieter; Vary, James; Forssén, Christian; Rotureau, Jimmy; Michel, Nicolas (2017). „Ab initio no-core solutions for 6Li“. Journal of Physics G: Nuclear and Particle Physics, 44, 7: 075103.

Wang, XiaoBao; Dong, GuoXiang; Li, QingFeng; Shen, CaiWan; Yu, ShaoYing (2016). „An investigation of ab initio shell-model interactions derived by no-core shell model“. Science China Physics, Mechanics & Astronomy, 59, 9: 692011.

Full Text: PDF


  • There are currently no refbacks.

Comments on this article

View all comments

Creative Commons License
This work is licensed under a Creative Commons Attribution 3.0 License.

eISSN: 2029-9966

Creative Commons License