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arXiv · 1609.06009

Competitive effects of nuclear deformation and density dependence of $\Lambda\!N$ interaction

M. Isaka·Y. Yamamoto·T h. A. Rijken
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Abstract

Competitive effects of nuclear deformation and density dependence of $\Lambda\!N$-interaction in $\Lambda$ binding energies $B_\Lambda$ of hypernuclei are studied systematically on the basis of the baryon-baryon interaction model ESC including many-body effects. By using the $\Lambda\!N$ G-matrix interaction derived from ESC, we perform microscopic calculations of $B_\Lambda$ in $\Lambda$ hypernuclei within the framework of the antisymmetrized molecular dynamics under the averaged-density approximation. The calculated values of $B_\Lambda$ reproduce experimental data within a few hundred keV in the wide mass regions from 9 to 51. It is found that competitive effects of nuclear deformation and density dependence of $\Lambda\!N$-interaction work decisively for fine tuning of $B_\Lambda$ values.

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M. Isaka, Y. Yamamoto, T h. A. Rijken. 2016-09-20. Competitive effects of nuclear deformation and density dependence of $\Lambda\!N$ interaction. https://arxiv.org/abs/1609.06009

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