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A systematic study of even-even nuclei up to the drip lines within the relativistic mean field framework

โœ Scribed by D. Hirata; K. Sumiyoshi; I. Tanihata; Y. Sugahara; T. Tachibana; H. Toki


Book ID
104336361
Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
535 KB
Volume
616
Category
Article
ISSN
0375-9474

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โœฆ Synopsis


We apply the relativistic mean field theory to study the ground state properties of about 2000 eveneven nuclei from Z=3 to L&120 up to the proton and neutron drip lines. The calculations have been done under the axial symmetry assumption and a quadratic constraint method in order to obtain all possible ground state configurations. We do not take into account the pairing correlation in the present study. The calculations are performed with the TMA parameter set. We explore the general trend of masses, radii and deformations in the whole region of the nuclear chart. Using the masses obtained from RMF theory, we calculate the r-process abundances and the r-process path.

The use of the radioactive beam provides us with an increasing knowledge of nuclei far from the stability line. Such studies of exotic nuclei display a large diversity of phenomena that could not be observed in the stable nuclei and bring new findings in nuclear physics f's1 . Examples are the neutron halos and the neutron shins for nuclei close to the neutron drip line[3'4'.

Having experimental efforts toward the drip lines, we are eager to exploit the general feature of the nuclear properties in the whole region of the nuclear chart. From a theoretical point of view, it is desirable to explore the nuclear properties starting from an effective many body theory.

The relativistic many body theory has been extensively applied to nuclei and nuclear matter with remarkable success in the last few years. It has been shown that the relativistic Brtieckner Hartree Foch (RBHF) theory is capable to reproduce the saturation properties of nuclear matter starting from the nucleonnucleon interaction determined by the scattering experiments[". Its phenomenological version, the relativistic mean field (R&IF) theory has been successfully applied to the description of various ground-state properties of nuclei. It has


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