scholarly journals Nucleon momentum distributions, their spin-isospin dependence, and short-range correlations

2013 ◽  
Vol 87 (3) ◽  
Author(s):  
M. Alvioli ◽  
C. Ciofi degli Atti ◽  
L. P. Kaptari ◽  
C. B. Mezzetti ◽  
H. Morita
Keyword(s):  
Short Range ◽  
Nucleon Momentum ◽  
Momentum Distributions ◽  
Isospin Dependence ◽  
Short Range Correlations

scholarly journals Universality of nucleon-nucleon short-range correlations: Two-nucleon momentum distributions in few-body systems

2012 ◽  
Vol 85 (2) ◽  
Author(s):  
M. Alvioli ◽  
C. Ciofi degli Atti ◽  
L. P. Kaptari ◽  
C. B. Mezzetti ◽  
H. Morita ◽  
...  
Keyword(s):  
Short Range ◽  
Nucleon Nucleon ◽  
Nucleon Momentum ◽  
Momentum Distributions ◽  
Short Range Correlations

scholarly journals UNIVERSALITY OF NUCLEON–NUCLEON SHORT-RANGE CORRELATIONS AND NUCLEON MOMENTUM DISTRIBUTIONS

2013 ◽  
Vol 22 (08) ◽  
pp. 1330021 ◽  
Author(s):  
MASSIMILIANO ALVIOLI ◽  
CLAUDIO CIOFI DEGLI ATTI ◽  
LEONID P. KAPTARI ◽  
CHIARA BENEDETTA MEZZETTI ◽  
HIKO MORITA
Keyword(s):  
Momentum Distribution ◽  
Short Range ◽  
Nucleon Nucleon ◽  
Experimental Investigations ◽  
Scaling Properties ◽  
Nucleon Momentum ◽  
Momentum Distributions ◽  
Correlation Hole ◽  
The Impact ◽  
Short Range Correlations

By analyzing recent microscopic many-body calculations of few-nucleon systems and complex nuclei performed by different groups in terms of realistic nucleon–nucleon (NN) interactions, it is shown that NN short-range correlations (SRCs) have a universal character, in that the correlation hole that they produce in nuclei appears to be almost A-independent and similar to the correlation hole in the deuteron. The correlation hole creates high-momentum components, missing in a mean-field (MF) description and exhibiting several scaling properties and a peculiar spin–isospin structure. In particular, the momentum distribution of a pair of nucleons in spin–isospin state (ST) = (10), depending upon the pair relative (k rel ) and center-of-mass (c.m.) (K c.m. ) momenta, as well as upon the angle Θ between them, exhibits a remarkable property: in the region k rel ≳2 fm -1 and K c.m. ≲1 fm -1, the relative and c.m. motions are decoupled and the two-nucleon momentum distribution factorizes into the deuteron momentum distribution and an A-dependent momentum distribution describing the c.m. motion of the pair in the medium. The impact of these and other properties of one- and two-nucleon momentum distributions on various nuclear phenomena, on ab initio calculations in terms of low-momentum interactions, as well as on ongoing experimental investigations of SRCs, are briefly commented.

scholarly journals Short range correlations and the isospin dependence of nuclear correlation functions

2018 ◽  
Vol 785 ◽  
pp. 304-308 ◽  
Author(s):  
R. Cruz-Torres ◽  
A. Schmidt ◽  
G.A. Miller ◽  
L.B. Weinstein ◽  
N. Barnea ◽  
...  
Keyword(s):  
Correlation Functions ◽  
Short Range ◽  
Isospin Dependence ◽  
Short Range Correlations
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