scholarly journals A systematic study of the effect of short range correlations on the occupation numbers of the shell model orbits in light nuclei

2019 ◽  
Vol 3 ◽  
pp. 48
Author(s):  
G. A. Lalazissis ◽  
S. E. Massen ◽  
C. P. Panos
Keyword(s):  
Shell Model ◽  
Systematic Study ◽  
Ground State ◽  
Short Range ◽  
Light Nuclei ◽  
Occupation Numbers ◽  
Approximate Treatment ◽  
Short Range Correlations

The role of short-range correlations on the depletion of the Fermi sea is studied in light nuclei.The short range correlations are considered in an approximate treatment allowing a systematic study of nuclei in the region 4 < A < 40. The "natural orbital" representation is used for the determination of the occupation probabilities of the shell model orbits of the ground state wave function. The depletion of the nuclear Fermi sea appears to be, on the average, about 32%.

scholarly journals TENSOR OPTIMIZED SHELL MODEL USING BARE INTERACTION FOR LIGHT NUCLEI

2010 ◽  
Vol 25 (21n23) ◽  
pp. 1985-1988
Author(s):  
TAKAYUKI MYO ◽  
HIROSHI TOKI ◽  
KIYOMI IKEDA
Keyword(s):  
Shell Model ◽  
Nuclear Structure ◽  
Short Range ◽  
Operator Method ◽  
Nuclear Interaction ◽  
Light Nuclei ◽  
New Method ◽  
Correlation Operator ◽  
Bare Interaction ◽  
Short Range Correlations

We propose a new method to describe nuclear structure using bare nuclear interaction, in which the tensor and short-range correlations are described by using the tensor optimized shell model (TOSM) and the unitary correlation operator method (UCOM), respectively.

TENSOR OPTIMIZED SHELL MODEL WITH UNITARY CORRELATION OPERATOR USING BARE INTERACTION FOR LIGHT NUCLEI

2009 ◽  
Vol 24 (11n13) ◽  
pp. 847-850
Author(s):  
TAKAYUKI MYO ◽  
HIROSHI TOKI ◽  
KIYOMI IKEDA
Keyword(s):  
Shell Model ◽  
Nuclear Structure ◽  
Theoretical Approach ◽  
Short Range ◽  
Operator Method ◽  
Nuclear Interaction ◽  
Light Nuclei ◽  
Correlation Operator ◽  
Bare Interaction ◽  
Short Range Correlations

We propose a new theoretical approach to calculate nuclear structure using bare nuclear interaction, in which the tensor and short-range correlations are described by using the tensor optimized shell model (TOSM) and the unitary correlation operator method (UCOM), respectively. We compare the obtained results using TOSM+UCOM for 4 He with the rigorous calculation.

scholarly journals The influence of state dependent short range correlations on the depletion of the nuclear Fermi sea

2020 ◽  
Vol 5 ◽  
pp. 158
Author(s):  
G. A. Lalazissis ◽  
S. E. Massen ◽  
C. P. Panos
Keyword(s):  
Shell Model ◽  
Single Particle ◽  
Short Range ◽  
State Dependence ◽  
Closed Shell ◽  
State Dependent ◽  
Occupation Numbers ◽  
Closed Shell Nuclei ◽  
The One ◽  
Short Range Correlations

The influence of state dependent short range correlations on the occupation numbers of the single particle shell model orbits of the doubly closed shell nuclei 16O and 40Ca is examined. The study shows that the effect of the state dependence of the short range correlations is rather small. The total depletion of the nuclear Fermi sea changes slightly compared with the one calculated by considering state independent short range correlations.

scholarly journals Role of tensor force in light nuclei with tensor-optimized shell model

2014 ◽  
Vol 569 ◽  
pp. 012065
Author(s):  
T Myo ◽  
A Umeya ◽  
K Horii ◽  
H Toki ◽  
K Ikeda
Keyword(s):  
Shell Model ◽  
Tensor Force ◽  
Light Nuclei

The role of intermediate state polarization in determination of vector properties of the ground state using multiphoton excitation

2006 ◽  
Vol 8 (25) ◽  
pp. 2972 ◽  
Author(s):  
P. S. Shternin ◽  
V. K. Ivanov ◽  
A. G. Suits ◽  
O. S. Vasyutinskii
Keyword(s):  
Ground State ◽  
Intermediate State ◽  
Multiphoton Excitation

scholarly journals Role of the tensor force in light nuclei with the tensor-optimized shell model

2013 ◽  
Vol 436 ◽  
pp. 012029 ◽  
Author(s):  
T Myo ◽  
A Umeya ◽  
H Toki ◽  
K Ikeda
Keyword(s):  
Shell Model ◽  
Tensor Force ◽  
Light Nuclei

scholarly journals Short-Range Correlations in the Magnetic Ground State ofNa4Ir3O8

2014 ◽  
Vol 113 (24) ◽  
Author(s):  
Rebecca Dally ◽  
Tom Hogan ◽  
Alex Amato ◽  
Hubertus Luetkens ◽  
Chris Baines ◽  
...  
Keyword(s):  
Ground State ◽  
Short Range ◽  
Magnetic Ground State ◽  
Short Range Correlations

scholarly journals A CBF calculation of 1S0 Superfluidity in the Inner Crust of Neutron Stars

2019 ◽  
Vol 17 ◽  
pp. 23
Author(s):  
G. Pavlou ◽  
E. Mavrommatis ◽  
Ch. C. Moustakidis ◽  
J. W. Clark
Keyword(s):  
Equation Of State ◽  
Neutron Stars ◽  
Basis Function ◽  
Correlation Functions ◽  
Short Range ◽  
Higher Order ◽  
Neutron Matter ◽  
S Wave ◽  
Short Range Correlations

Singlet S-wave superfluidity of dilute neutron matter in the inner crust of neutron stars is studied within the correlated BCS (Bardeen, Cooper, Schrieffer) method, taking into account both pairing and short-range correlations. First, the equation of state (EOS) of normal neutron matter is calculated within the correlated-basis-function (CBF) method in lowest cluster order using the Argonne V18 and V4′ potentials and Jastrow-type correlation functions. The 1S0 superfluid gap is then calculated with these potentials and correlation functions. The dependence of our results on the choice of the correlation functions is ana- lyzed and the role of higher-order cluster corrections is considered. The values obtained for the 1S0 gap within this simplified scheme are comparable to those from other, more elaborate, methods.

scholarly journals Magnetic frustration, short-range correlations and the role of the paramagnetic Fermi surface of PdCrO2

2015 ◽  
Vol 5 (1) ◽  
Author(s):  
David Billington ◽  
David Ernsting ◽  
Thomas E. Millichamp ◽  
Christopher Lester ◽  
Stephen B. Dugdale ◽  
...  
Keyword(s):  
Fermi Surface ◽  
Short Range ◽  
Magnetic Frustration ◽  
Short Range Correlations
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