Exactly solvable pairing Hamiltonian for heavy nuclei

Physical Review C (Impact Factor: 3.72). 09/2011; 84. DOI: 10.1103/PhysRevC.84.061301
Source: arXiv

ABSTRACT We present a new exactly solvable Hamiltonian with a separable pairing
interaction and non-degenerate single-particle energies. It is derived from the
hyperbolic family of Richardson-Gaudin models and possesses two free
parameters, one related to an interaction cutoff and the other to the pairing
strength. These two parameters can be adjusted to give an excellent
reproduction of Gogny self-consistent mean-field calculations in the canonical

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