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11 papers · 2 filters
Effective pairing interactions with isospin density dependence
J. Margueron, H. Sagawa, K. Hagino
We perform Hartree-Fock-Bogoliubov (HFB) calculations for semi-magic Calcium, Nickel, Tin and Lead isotopes and =20, 28, 50 and 82 isotones using density-dependent pairing inter…
Effects of the particle-particle channel on properties of low-lying vibrational states
A. P. Severyukhin, V. V. Voronov, Nguyen Van Giai
Making use of the finite rank separable approach for the quasiparticle random phase approximation enables one to perform nuclear structure calculations in very large two-quasiparti…
BCS-BEC crossover of neutron pairs in symmetric and asymmetric nuclear matter
J. Margueron, Hiroyuki Sagawa, Kouichi Hagino
We propose new types of density dependent contact pairing interaction which reproduce the pairing gaps in symmetric and neutron matter obtained by a microscopic treatment based on…
Detecting bubbles in exotic nuclei
E. Khan, M. Grasso, J. Margueron +1
The occurrence of a bubble, due to an inversion of s state with the state usually located above, is investigated. Proton bubbles in neutron-rich Argon isotopes are optimal…
Low densities in asymmetric nuclear matter
J. Margueron, E. Van Dalen, C. Fuchs
Asymmetric nuclear matter is investigated in the low density region below the nuclear saturation density. Microscopic calculations based on the Dirac Brueckner Hartree-Fock (DBHF)…
Shell Structure and -Tensor Correlations in Density-Dependent Relativistic Hartree-Fock theory
Wen Hui Long, Hiroyuki Sagawa, Nguyen Van Giai +1
A new effective interaction PKA1 with -tensor couplings for the density-dependent relativistic Hartree-Fock (DDRHF) theory is presented. It is obtained by fitting selected empir…