Temperature dependence of the nuclear symmetry energy
نویسندگان
چکیده
منابع مشابه
v 2 2 6 A ug 1 99 4 Temperature dependence of the nuclear symmetry energy
We have studied the properties of A = 54 and A = 64 isobars at temperatures T ≤ 2 MeV via Monte Carlo shell model calculations with two different residual interactions. In accord with empirical indications, we find that the symmetry energy coefficient, bsym, is independent of temperature to within 0.6 MeV for T ≤ 1 MeV. This is in contrast to a recent suggestion of a 2.5 MeV increase of bsym fo...
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...
متن کاملIsospin-Dependence of π/π Ratio and Density-Dependence of Nuclear Symmetry Energy
The π/π ratio is examined as a function of isospin asymmetry and beam energy for central collisions induced by neutron-rich nuclei within an isospindependent hadronic transport model. The π/π ratio is found to increase with the isospin asymmetry, but decrease with the beam energy of the reaction. For neutron-rich systems, such as, Sn + Sn and Sn + Sn, the sensitivity of π/π ratio to nuclear sym...
متن کاملRoles of isoscalar hyperons in probing the density dependence of the nuclear symmetry energy
The role of the isoscalar hyperon Λ in probing the density dependence of the nuclear symmetry energy is studied in multi-Λ hypernuclei, hyperon-rich matter and neutron stars in relativistic models. Relationships between the properties of three types of objects and the neutron thickness in Pb are established with respect to the isoscalar-isovector coupling that modifies the density dependence of...
متن کاملEffect of Tensor Correlations on the Density Dependence of the Nuclear Symmetry Energy
We analyze the effect of the tensor force and other components of the nucleon-nucleon interaction on the nuclear symmetry energy and its density dependence by using the Hellmann–Feynman theorem. The analysis is performed within the microscopic Brueckner–Hartree–Fock approach using the Argonne V18 potential plus a Urbana IX three-nucleon force. Our results show that the potential part of the nuc...
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: Physics Letters B
سال: 1995
ISSN: 0370-2693
DOI: 10.1016/0370-2693(95)00858-i