• O(12) limit and complete classification of symmetry schemes in proton-neutron interacting boson model

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    • Keywords


      Proton-neutron interacting boson model; pnIBM; symmetry limits; complete classification; F spin; F spin breaking; goodMF; O(12) limit; O(12) ⊃ O(6) ⊗ O(2); O(12) ⊃ O(2) ⊕O(10)

    • Abstract


      It is shown that the proton-neutron interacting boson model (pnIBM) admits new symmetry limits withO(12) algebra which breakF spin but preserves theFz quantum numberMF. The generators ofO(12) are derived and the quantum numberU ofO(12) for a given boson numberN is determined by identifying the corresponding quasi-spin algebra. TheO(12) algebra generates two symmetry schemes and for both of them, complete classification of the basis states and typical spectra are given. With theO(12) algebra identified, complete classification of pnIBM symmetry limits with goodMF is established.

    • Author Affiliations


      V K B Kota1

      1. Physical Research Laboratory, Ahmedabad - 380 009, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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