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>Competing effects of nuclear deformation and density dependence of the Lambda N interaction in B-Lambda values of hypernuclei
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Competing effects of nuclear deformation and density dependence of the Lambda N interaction in B-Lambda values of hypernuclei
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 (extended soft core) 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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