Towards the universal nuclear energy density functional
نویسندگان
چکیده
منابع مشابه
Towards Density Functional Calculations from Nuclear Forces
We propose a method for microscopic calculations of nuclear groundstate properties in the framework of density functional theory (DFT). We discuss how the density functional is equivalent to the effective action for the density, thereby establishing a constructive framework for DFT calculations from nuclear forces. The presented approach starts from non-interacting nucleons in a background pote...
متن کاملNuclear energy density functional from chiral pion-nucleon dynamics
We calculate the nuclear energy density functional relevant for N=Z even-even nuclei in the systematic framework of chiral perturbation theory. The calculation includes the onepion exchange Fock diagram and the iterated one-pion exchange Hartree and Fock diagrams. From these few leading order contributions in the small momentum expansion one obtains already a very good equation of state of isos...
متن کاملNuclear Density Functional Constrained by Low-energy Qcd *
We have developed a relativistic point-coupling model of nuclear many-body dynamics constrained by the low-energy sector of QCD. The effective Lagrangian is characterized by density-dependent coupling strengths determined by chiral one-and two-pion exchange (with single and double delta isobar excitations) and by large isoscalar background fields that arise through changes of the quark conden-s...
متن کاملScalar nature of the nuclear density functional
Because of the rotational invariance of the nuclear Hamiltonian, there exists a density functional (DF) for nuclei that depends only on two scalar densities. Practical calculations boil down to radial, one-dimensional ones. Let Z,N,A ≡ Z+N be the proton, neutron and mass numbers, respectively. The nuclear HamiltonianH is known to be invariant under rotations. Therefore, besides Z and N, nuclear...
متن کاملProgress Towards Determining the Density Dependence of the Nuclear Symmetry Energy Using Heavy-Ion Reactions
The latest development in determining the density dependence of the nuclear symmetry energy using heavy-ion collisions is reviewed. Within the IBUU04 version of an isospinand momentum-dependent transport model using a modified Gogny effective interaction, recent experimental data from NSCL/MSU on isospin diffusion are found to be consistent with a nuclear symmetry energy of Esym(ρ) ≈ 31.6(ρ/ρ0)...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Physics: Conference Series
سال: 2009
ISSN: 1742-6596
DOI: 10.1088/1742-6596/180/1/012082