delta-pairing forces and collective pairing vibrations

Abstract

The collective pairing hamiltonian is obtained in the framework of the generator coordinate method in the gaussian overlap approximation with a slightly modified BCS function used as a generator function. The collective variable alpha, measuring the monopole moment of the pairing field, and the gauge transformation angle phi are chosen as generator coordinates. The vibrational ground states are calculated by diagonalisation of the collective pairing hamiltonian in the harmonic oscillator basis.

arXiv comment6 pages; 3 figures; LaTeX2e; submitted to EPJ

References in corpus (2)

• Collective quadrupole excitations in the 50<Z,N<82 nuclei with the generalized Bohr Hamiltonian
• The low-lying quadrupole collective excitations of Ru and Pd isotopes

Cited by in corpus (4)

• Large-Scale Self-Consistent Nuclear Mass Calculations
• Coupling of shape and pairing vibrations in a collective Hamiltonian based on nuclear energy density functionals
• Pairing vibrations in the interacting boson model based on density functional theory
• Impact of isovector pairing fluctuation on neutrinoless double-beta decay in multi-reference covariant density functional theory