Linear Responses in Time-dependent Hartree-Fock-Bogoliubov Method with Gogny Interaction

Details Linear Responses in Time-dependent Hartree-Fock-Bogoliubov Method with Gogny Interaction Linear Responses in Time-dependent Hartree-Fock-Bogoliubov Method with Gogny Interaction

2012-03-28

arxiv.org/abs/1203.6174v1

Physics

Nuclear Physics

Nuclear Theory

10 pages, 13 figures

Scientific paper

A numerical method to integrate the time-dependent Hartree-Fock Bogoliubov (TDHFB) equations with Gogny interaction is proposed. The feasibility of the TDHFB code is illustrated by the conservation of the energy, particle numbers, and center-of-mass in the small amplitude vibrations of oxygen 20. The TDHFB code is applied to the isoscalar quadrupole and/or isovector dipole vibrations in the linear (small amplitude) region in oxygen isotopes (masses A = 18,20,22 and 24), titanium isotopes (A = 44,50,52 and 54), neon isotope (A = 26), and magnesium isotopes (A = 24 and 34). The isoscalar quadrupole and isovector dipole strength functions are calculated from the expectation values of the isoscalar quadrupole and isovector dipole moments.

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