DINEUTRON CORRELATION IN THE GROUND STATE AND E1 EXCITATIONS OF BORROMEAN NUCLEI

Using a three-body model with density-dependent contact interaction, we discuss the role of dineutron correlation in the ground state properties as well as in the dipole excitation of typical weakly-bound Borromean nuclei, 11 Li and 6 He . We show that, while both the nuclei manifest themselves similar strong dineutron correlations to each other in the ground state, the energy distributions for the two emitted neutrons from the dipole excitation are considerably different. We also discuss briefly the diproton correlation in a proton-rich Borromean nucleus, 17 Ne .

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A THREE-BODY MODEL ON NEUTRON HALO IN EXOTIC LIGHT NUCLEI

Modern Physics Letters A ◽

10.1142/s0217732303010193 ◽

2003 ◽

Vol 18 (02n06) ◽

pp. 174-177 ◽

Cited By ~ 2

Author(s):

ZHONGZHOU REN ◽

NING LI ◽

H. Y. ZHANG ◽

W. Q. SHEN

Keyword(s):

Ground State ◽

Good Explanation ◽

Light Nuclei ◽

Halo Nuclei ◽

Neutron Halo ◽

Body Interaction ◽

Body Model ◽

Ground State Properties ◽

Three Body

The three-body calculations on halo nuclei are reviewed and discussed. It is concluded that the ground state properties of halo nuclei 11 Li , 14 Be and 17 B are independent of the shape of two-body potentials and an explanation on it is given. It is also shown that an introduction of a three-body interaction may be useful for a good explanation of the properties of halo nuclei.

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Role of covalency in the ground-state properties of perovskite ruthenates: A first-principles study using local spin density approximations

Physical Review B ◽

10.1103/physrevb.73.235110 ◽

2006 ◽

Vol 73 (23) ◽

Cited By ~ 50

Author(s):

Kalobaran Maiti

Keyword(s):

Spin Density ◽

Ground State ◽

First Principles ◽

Local Spin ◽

First Principles Study ◽

Ground State Properties

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Ground state properties and shape evolution in Pt isotopes within the covariant density functional theory

International Journal of Modern Physics E ◽

10.1142/s0218301319500782 ◽

2019 ◽

Vol 28 (10) ◽

pp. 1950078

Author(s):

Y. El Bassem ◽

M. Oulne

Keyword(s):

Density Functional Theory ◽

Ground State ◽

Density Functional ◽

Meson Exchange ◽

Isotopic Chain ◽

Functional Theory ◽

Density Dependent ◽

Covariant Density Functional Theory ◽

Ground State Properties ◽

Covariant Density

In this work, the ground state properties of the platinum isotopic chain, [Formula: see text]Pt are studied within the covariant density functional theory. The calculations are carried out for a large number of even–even Pt isotopes by using the density-dependent point-coupling and the density-dependent meson-exchange effective interactions. All ground state properties such as the binding energy, separation energy, two-neutron shell gap, root mean square (rms)-radii for neutrons and protons and quadrupole deformation are discussed and compared with available experimental data, and with the predictions of some nuclear models such as the Relativistic Mean Field (RMF) model with NL3 functional and the Hartree–Fock–Bogoliubov (HFB) method with SLy4 Skyrme force. The shape phase transition for Pt isotopic chain is also studied. Its corresponding total energy curves as well as the potential energy surfaces confirm the transition from prolate to oblate shapes at [Formula: see text]Pt contrary to some studies predictions and in agreement with others. Overall, a good agreement is found between the calculated and experimental results wherever available.

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