Ab Initio Description of Clustering Phenomena in Spectra of Light Nuclei


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Abstract

An approach has been presented to take into account clustering properties of nuclei by the introduction of cluster components in the basis used in microscopic ab initio calculations and to calculate the cluster characteristics of nuclei by the projection of the A-nucleon wavefunction on wavefunctions of cluster channels. The binding energy, spectra, and cluster spectroscopic factors of the α + t channel have been calculated for the ground and lower excited states of the 7Li nucleus. It has been shown that, except for a single state these states are strongly clustered, which is in qualitative agreement with spectroscopic data. It has also been found that the contribution of “noncluster” components to the binding energy is very large even in strongly clustered states.

About the authors

D. M. Rodkin

All-Russia Research Institute of Automatics; Moscow Institute of Physics and Technology (State University); Pacific National University

Author for correspondence.
Email: rodkindm92@gmail.com
Russian Federation, Moscow, 127055; Dolgoprudnyi, Moscow region, 141701; Khabarovsk, 680035

Yu. M. Tchuvil’sky

All-Russia Research Institute of Automatics; Moscow Institute of Physics and Technology (State University); Pacific National University; Skobeltsyn Institute of Nuclear Physics

Email: rodkindm92@gmail.com
Russian Federation, Moscow, 127055; Dolgoprudnyi, Moscow region, 141701; Khabarovsk, 680035; Moscow, 119991

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