Renormalized proton neutron quasiparticle random phase approximation and its application to double beta decay

1995

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1996200320102017202305101520
Abstract: (APS)
A self-consistent method of treating excitations of the proton-neutron quasiparticle random-phase approximation is presented. The non-self-consistent methods violate the Pauli exclusion principle and lead to an eventual collapse of the ground state. This behavior renders a reliable calculation of the nuclear matrix elements, relevant for the prediction of double-beta-decay half-lives, difficult. The present formalism promotes the Pauli exclusion principle and avoids the collapse of the double-beta-decay matrix elements. We have applied this formalism to the double beta decay of 100Mo.
  • random phase approximation
  • double-beta decay
  • correlation: ground state
  • molybdenum
  • fermion: statistics
  • energy levels
  • numerical calculations