The nuclear symmetry energy
نویسندگان
چکیده
منابع مشابه
Symmetry 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 کاملOn the linear term in the nuclear symmetry energy
The nuclear symmetry energy calculated in the RPA from the pairing plus symmetry force Hamiltonian with equidistant single-nucleon levels is for mass number A = 48 approximately proportional to T (T +1.05), where T is the isospin quantum number. An isovector character of the pair field assumed to produce the observed odd-even mass staggering is essential for this result. The RPA contribution to...
متن کاملProbing the symmetry energy from the nuclear isoscaling
S. R. Souza,1,2 M. B. Tsang,3 R. Donangelo,1 W. G. Lynch,3 and A. W. Steiner3 1Instituto de Fı́sica, Universidade Federal do Rio de Janeiro Cidade Universitária, CP 68528, 21941972, Rio de Janeiro, Brazil 2Instituto de Fı́sica, Universidade Federal do Rio Grande do Sul Av. Bento Gonçalves 9500, CP 15051, 91501-970, Porto Alegre, Brazil 3Joint Institute for Nuclear Astrophysics, National Supercond...
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 کاملHigh momentum components in the nuclear symmetry energy
The short-range and tensor correlations associated to realistic nucleon-nucleon interactions induce a population of high-momentum components in the many-body nuclear wave function. We study the impact of such high-momentum components on bulk observables associated to isospin asymmetric matter. The kinetic part of the symmetry energy is strongly reduced by correlations when compared to the non-i...
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ژورنال
عنوان ژورنال: Progress in Particle and Nuclear Physics
سال: 2016
ISSN: 0146-6410
DOI: 10.1016/j.ppnp.2016.06.006