EFFECT OF THREE-BODY CLUSTERS IN THE GROUND-STATE PROPERTIES OF SPIN-POLARIZED LIQUID3He

2014 ◽  
Vol 146 (4) ◽  
pp. 693-699 ◽  
Author(s):  
Z. Razavifar ◽  
A. Rajabi
Keyword(s):  
Ground State ◽  
Ground State Properties ◽  
Spin Polarized ◽  
Three Body

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

2010 ◽  
Vol 25 (21n23) ◽  
pp. 1842-1845
Author(s):  
K. HAGINO ◽  
H. SAGAWA ◽  
T. OISHI
Keyword(s):  
Contact Interaction ◽  
Ground State ◽  
Energy Distributions ◽  
Weakly Bound ◽  
Density Dependent ◽  
Body Model ◽  
Dipole Excitation ◽  
Ground State Properties ◽  
Three Body

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 .

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

2003 ◽  
Vol 18 (02n06) ◽  
pp. 174-177 ◽  
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.

scholarly journals SPIN POLARIZED LIQUID 3He

2005 ◽  
Vol 19 (21) ◽  
pp. 3379-3388 ◽  
Author(s):  
G. H. BORDBAR ◽  
S. M. ZEBARJAD ◽  
M. R. VAHDANI ◽  
M. BIGDELI
Keyword(s):  
Variational Method ◽  
Internal Energy ◽  
Spin Polarization ◽  
Ground State ◽  
Bound State ◽  
Liquid Density ◽  
Density Range ◽  
Ground State Properties ◽  
Spin Polarized ◽  
Crossing Point

We have employed the constrained variational method to study the influence of spin polarization on the ground state properties of liquid 3 He . The spin polarized phase, we have found, has stronger correlation with respect to the unpolarized phase. It is shown that the internal energy of liquid 3 He increases by increasing polarization with no crossing point between polarized and unpolarized energy curves over the liquid density range. The obtained internal energy curves show a bound state, even in the case of fully spin polarized matter. We have also investigated the validity of using a parabolic formula for calculating the energy of spin polarized liquid 3 He . Finally, we have compared our results with other calculations.

GROUND-STATE PROPERTIES OF Mn2 AND Fe2 IN THE LOCAI-SPIN-DENSITY APPROXIMATION

1993 ◽  
Vol 07 (01n03) ◽  
pp. 560-563 ◽  
Author(s):  
J. PIECHOTA ◽  
M. SUFFCZYŃSKI
Keyword(s):  
Spin Density ◽  
Ground State ◽  
Local Spin Density Approximation ◽  
Density Approximation ◽  
Equilibrium Distance ◽  
Ground State Properties ◽  
Spin Polarized ◽  
Antiferromagnetic Ground State ◽  
Symmetry Constraints ◽  
Full Symmetry

Ab initio self-consistent all-electron spin-polarized calculations have been performed for the ground-state properties of the Mn 2 and Fe 2 molecules using the local-spin-density approximation. The total energy, the binding energy, the equilibrium distance, vibrational frequency, and the ground-state configuration are reported for each of these dimers. While for Fe 2 the region near equilibrium distance, r e , is characterized by full-symmetry (D∞ h ) molecular orbitals, for Mn 2 the symmetry breaking is essential: The true, "antiferromagnetic", ground state can be obtained only if reduced, C∞ v , symmetry constraints are used. These results are compared with other calculations and experimental results, where available.

Effective three- and four-body forces in the five nucleon system

1978 ◽  
Vol 56 (10) ◽  
pp. 1382-1385
Author(s):  
J. J. Bevelacqua
Keyword(s):  
Excited State ◽  
Ground State ◽  
Body Force ◽  
Binding Energies ◽  
Nucleon System ◽  
Body Interaction ◽  
Body Forces ◽  
Ground State Properties ◽  
First Excited State ◽  
Three Body

Effective three-body forces utilized in the A = 3 and 4 systems are extended to the mass five system. The approach predicts an overestimate of the binding energies for both 5Li and 5He. An effective four-body interaction, derived from A = 4 ground state properties, is used in conjunction with this three-body force, and predicts results in agreement with experiment. The position of the first excited state is calculated to lie at 7.2 MeV excitation for both 5Li and 5He.

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