Recent Advances in Microscopic Approaches to Nuclear Matter and Symmetry Energy
نویسندگان
چکیده
منابع مشابه
Recent Advances in Microscopic Approaches to Nuclear Matter and Symmetry Energy
Nuclear matter is a convenient theoretical laboratory to test many-body theories. When neutron and proton densities are different, the isospin dependence of the nuclear force gives rise to the symmetry energy term in the equation of state. This quantity is a crucial mechanism in the formation of the neutron skin in nuclei, as well as in other systems and phenomena involved in the dynamics of ne...
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The relativistic mean-field plus RPA calculations, based on effective Lagrangians with densitydependent meson-nucleon vertex functions, are employed in a microscopic analysis of the nuclear matter compressibility and symmetry energy. We compute the isoscalar monopole and the isovector dipole response of Pb, as well as the differences between the neutron and proton radii for Pb and several Sn is...
متن کاملSymmetry energy of dilute warm nuclear matter.
The symmetry energy of nuclear matter is a fundamental ingredient in the investigation of exotic nuclei, heavy-ion collisions, and astrophysical phenomena. New data from heavy-ion collisions can be used to extract the free symmetry energy and the internal symmetry energy at subsaturation densities and temperatures below 10 MeV. Conventional theoretical calculations of the symmetry energy based ...
متن کاملRecent Advances in the Theory of Nuclear Forces and Its Impact on Microscopic Nuclear Structure∗
The theory of nuclear forces has made great progress since the turn of the millenium using the framework of chiral effective field theory (ChEFT). The advantage of this approach, which was originally proposed by Weinberg, is that it has a firm basis in quantumchromodynamics and allows for quantitative calculations. Moreover, this theory generates two-nucleon forces (2NF) and many-body forces on...
متن کاملDensity dependence of the nuclear symmetry energy: a microscopic perspective
We perform a systematic analysis of the density dependence of the nuclear symmetry energy within the microscopic Brueckner–Hartree–Fock (BHF) approach using the realistic Argonne V18 nucleon-nucleon potential plus a phenomenological three body force of Urbana type. Our results are compared thoroughly to those arising from several Skyrme and relativistic effective models. The values of the param...
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ژورنال
عنوان ژورنال: Symmetry
سال: 2014
ISSN: 2073-8994
DOI: 10.3390/sym6040851