Microscopic particle-rotor model for the low-lying spectrum of Λ hypernuclei

H. Mei, K. Hagino, J. M. Yao, T. Motoba

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28 Citations (Scopus)


We propose a novel method for low-lying states of hypernuclei based on the particle-rotor model, in which hypernuclear states are constructed by coupling the hyperon to low-lying states of the core nucleus. In contrast to the conventional particle-rotor model, we employ a microscopic approach for the core states; that is, the generator coordinate method (GCM) with the particle number and angular momentum projections. We apply this microscopic particle-rotor model to Λ9Be as an example employing a point-coupling version of the relativistic mean-field Lagrangian. A reasonable agreement with the experimental data for the low-spin spectrum is achieved using the ΛN coupling strengths determined to reproduce the binding energy of the Λ particle.

Original languageEnglish
Article number064302
JournalPhysical Review C - Nuclear Physics
Issue number6
Publication statusPublished - 2014 Dec 1

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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