scholarly journals The effect of short-range correlations on the generalized momentum distribution in finite nuclei

2007 ◽  
Vol 34 (7) ◽  
pp. 1827-1843 ◽  
Author(s):  
Ch C Moustakidis ◽  
P Papakonstantinou ◽  
E Mavrommatis
Keyword(s):  
Momentum Distribution ◽  
Short Range ◽  
Generalized Momentum ◽  
Finite Nuclei ◽  
Short Range Correlations

scholarly journals ON THE TWO-BODY MOMENTUM DISTRIBUTION IN FINITE NUCLEI

2003 ◽  
Vol 17 (28) ◽  
pp. 5197-5201
Author(s):  
P. PAPAKONSTANTINOU ◽  
E. MAVROMMATIS ◽  
T. S. KOSMAS
Keyword(s):  
Shell Model ◽  
Momentum Distribution ◽  
Correlation Functions ◽  
Short Range ◽  
Closed Shell ◽  
Independent Particle ◽  
Closed Shell Nuclei ◽  
Analytic Expressions ◽  
Finite Nuclei ◽  
Short Range Correlations

We present compact analytic expressions for the two-body momentum distribution η2(p1, p2) in Z=N closed-shell nuclei derived within the context of the independent particle shell model. Results are derived for the nucleus 16 O . The effect of dynamical short-range correlations is estimated using Jastrow-type correlation functions in the case of the nucleus 4 He .

scholarly journals Study of the Generalized Momentum Distribution of Model Nuclear Matter

2020 ◽  
Vol 5 ◽  
pp. 139
Author(s):  
E. Mavrommatis ◽  
M. Petraki ◽  
J. W. Clark
Keyword(s):  
Nuclear Matter ◽  
Momentum Distribution ◽  
Short Range ◽  
Body Density ◽  
Generalized Momentum ◽  
Hypernetted Chain ◽  
The Fourier Transform ◽  
Short Range Correlations ◽  
The Ideal

Valuable information on the correlation structure of the nuclear medium is stored in the generalized momentum distribution n(p,Q), the Fourier transform of the half-diagonal two-body density matrix ρ_{2η}(r_1,r_2,r'). In this paper, we present a numerical calculation of n(p,Q) for two Jastrow-correlated models of symmetrical nuclear matter based on the structural decomposition of n(p,Q) derived by Ristig and Clark and on a Fermi-hypernetted-chain procedure. Results exhibit significant departures from the ideal Fermi gas case in certain kinematic domains; this behaviour indicates the strong short-range correlations present in these models. Nevertheless, such deviations are less prominent than in earlier low- cluster-order calculations. The results are also used to judge the quality of Silver's approximation for n(p,Q).

Effects of short-range correlations on the self-energy in the optical model of finite nuclei

1992 ◽  
Vol 539 (2) ◽  
pp. 189-208 ◽  
Author(s):  
M. Borromeo ◽  
D. Bonatsos ◽  
H. Müther ◽  
A. Polls
Keyword(s):  
Short Range ◽  
Optical Model ◽  
The Self ◽  
Self Energy ◽  
Finite Nuclei ◽  
Short Range Correlations

Generalized momentum distribution in finite nuclei

2000 ◽  
Vol 673 (1-4) ◽  
pp. 171-188 ◽  
Author(s):  
P. Papakonstantinou ◽  
E. Mavrommatis ◽  
T.S. Kosmas
Keyword(s):  
Momentum Distribution ◽  
Generalized Momentum ◽  
Finite Nuclei

PAIRING OF STRONGLY CORRELATED NUCLEONS

2007 ◽  
Vol 21 (13n14) ◽  
pp. 2395-2406
Author(s):  
W. H. DICKHOFF
Keyword(s):  
Short Range ◽  
Mean Field ◽  
Strongly Correlated ◽  
Monte Carlo Calculations ◽  
Self Consistent ◽  
Complete Treatment ◽  
Pure Neutron Matter ◽  
Proton Pairing ◽  
Finite Nuclei ◽  
Short Range Correlations

Pairing properties of infinite matter are surveyed that are obtained from self-consistent Green's function calculations. A complete treatment of off-shell propagation that incorporates the effects of short-range correlations is included. Mean-field calculations based on the BCS approach are superseded by the present results, which resolve a long-standing puzzle associated with 3S1-3D1 (proton-neutron) pairing in symmetric nuclear matter. Results for 1S0 pairing in pure neutron matter are in agreement with recent Monte-Carlo calculations for this system. The possibility of proton pairing in finite nuclei, as a result of increasing proton correlations with increasing nucleon asymmetry, is pointed out.

scholarly journals Short Range Correlations and Wave Function Factorization in Light and Finite Nuclei

2010 ◽  
Vol 50 (1-4) ◽  
pp. 243-246 ◽  
Author(s):  
C. Ciofi degli Atti ◽  
L. P. Kaptari ◽  
H. Morita ◽  
S. Scopetta
Keyword(s):  
Wave Function ◽  
Short Range ◽  
Finite Nuclei ◽  
Short Range Correlations
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