0 Coulomb exchange and pairing contributions in nuclear Hartree – Fock – Bogoliubov calculations with the Gogny force
نویسندگان
چکیده
We present exact Hartree–Fock–Bogoliubov calculations with the finite range density dependent Gogny force using a triaxial basis. For the first time, all contributions to the Pairing and Fock Fields arising from the Gogny and Coulomb interactions as well as the two-body correction of the kinetic energy have been calculated in this basis. We analyze the relevance of these terms in different regions of the periodic table at zero and high angular momentum. The validity of commonly used approximations that neglect different terms in the variational equations is also checked. We find a decrease of the proton pairing energies mainly due to a Coulomb antipairing effect.
منابع مشابه
Comparison of Δ-and Gogny-type Pairing Interactions
The pairing interaction plays a crucial role in the nuclear mean-field model calculations. The most frequently used pairing type is the so-called monopole pairing interaction (g=const model). More realistic residual interactions are those with state-dependent matrix elements, e.g. δand Gogny forces. Previously the Gogny-type pairing force were studied within conventional Hartree-Fock-Bogoliubov...
متن کامل2 00 3 Pairing in nuclear systems with effective Gogny and V low k interactions
The pairing properties of nuclear systems are a sensitive probe of the effective nucleon-nucleon interactions. We compare the 1 S 0 pairing gaps in nuclear and neutron matter derived from the phenomenological Gogny interaction and a renormal-ization group motivated low-momentum V low k interaction extracted from realistic interactions. We find that the pairing gaps predicted by these interactio...
متن کاملar X iv : n uc l - th / 0 30 80 68 v 1 2 5 A ug 2 00 3 Pairing in nuclear systems with effective Gogny and V low k interactions
The pairing properties of nuclear systems are a sensitive probe of the effective nucleon-nucleon interactions. We compare the 1 S 0 pairing gaps in nuclear and neutron matter derived from the phenomenological Gogny interaction and a renormal-ization group motivated low-momentum V low k interaction extracted from realistic interactions. We find that the pairing gaps predicted by these interactio...
متن کاملar X iv : n uc l - th / 0 30 80 68 v 3 2 3 A pr 2 00 4 Pairing in nuclear systems with effective Gogny and V low k interactions
The pairing properties of nuclear systems are a sensitive probe of the effective nucleon-nucleon interactions. We compare the 1 S 0 pairing gaps in nuclear and neutron matter derived from the phenomenological Gogny interaction and a renormal-ization group motivated low-momentum V low k interaction extracted from realistic interactions. We find that the pairing gaps predicted by these interactio...
متن کاملContinuum HFB calculations with finite range pairing interactions
A new method of calculating pairing correlations in coordinate space with finite range interactions is presented. In the Hartree-Fock-Bogoliubov (HFB) approach the mean field part is derived from a Skyrme-type force whereas the pairing field is constructed with a Gogny force. An iterative scheme is used for solving the integro-differential HFB equations via the introduction of a local equivalen...
متن کامل