scholarly journals Universality of nucleon-nucleon short-range correlations: The factorization property of the nuclear wave function, the relative and center-of-mass momentum distributions, and the nuclear contacts

2016 ◽  
Vol 94 (4) ◽  
Author(s):  
M. Alvioli ◽  
C. Ciofi degli Atti ◽  
H. Morita
Keyword(s):  
Wave Function ◽  
Short Range ◽  
Center Of Mass ◽  
Nucleon Nucleon ◽  
Nuclear Wave Function ◽  
Factorization Property ◽  
Momentum Distributions ◽  
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.

Effect of Short Range Correlations in Charged Pion Photoproduction from 16O

1975 ◽  
Vol 53 (13) ◽  
pp. 1292-1298 ◽  
Author(s):  
K. Srinivasa Rao ◽  
V. Devanathan
Keyword(s):  
Wave Function ◽  
Correlation Function ◽  
Short Range ◽  
Unitary Operator ◽  
Charged Pion ◽  
Pion Photoproduction ◽  
Nuclear Wave Function ◽  
Positive Pion ◽  
Short Range Correlations

Short range correlations in nuclei are introduced into the nuclear wave function using a unitary operator whose form was originally suggested by Villars. Their effect on positive pion photoproduction from 16O is found to be small for the correlation function we have assumed.

scholarly journals Probing short-range NN-correlations in the reaction 12C + p → p + pN + 10A

2019 ◽  
Vol 222 ◽  
pp. 03027
Author(s):  
Yuriy Uzikov
Keyword(s):  
Plane Wave ◽  
Short Range ◽  
Center Of Mass ◽  
Mass Motion ◽  
Nucleon Pair ◽  
Spectroscopic Factors ◽  
Momentum Distributions ◽  
Invariant Shell ◽  
Invariant Shell Model ◽  
Fast Deuteron

The exclusive reaction 12C(p, ppN)10A of quasi-elastic knockout of the nucleon from the short-rangecorrelated nucleon pair <NN> in the 12C nucleus by proton with an energy of few GeV is considered in the plane-wave approximation.The two-nucleon spectroscopic factors and momentum distributions of the center of mass motion of NN-pairs are considered by analogy with theory of quasi-elastic knockout of fast deuteron clusters from nuclei (p, Nd) using the translationally-invariant shell model.

scholarly journals A novel nuclear dependence of nucleon–nucleon short-range correlations

2017 ◽  
Vol 769 ◽  
pp. 446-450 ◽  
Author(s):  
Hongkai Dai ◽  
Rong Wang ◽  
Yin Huang ◽  
Xurong Chen
Keyword(s):  
Short Range ◽  
Nucleon Nucleon ◽  
Nuclear Dependence ◽  
Short Range Correlations

Smooth nucleon–nucleon interactions and meson theory

1968 ◽  
Vol 46 (8) ◽  
pp. 963-969 ◽  
Author(s):  
Pierre Desgrolard ◽  
J. M. Pearson ◽  
Gérard Saunier
Keyword(s):  
Nuclear Matter ◽  
Long Range ◽  
Short Range ◽  
Singlet State ◽  
Nucleon Nucleon ◽  
Second Order ◽  
Meson Theory ◽  
The One ◽  
Range Part ◽  
Short Range Correlations

Tabakin and Davies have shown that it is possible to fit the singlet-state nucleon–nucleon data with a potential that is smooth enough to give very small second-order terms in an ordinary perturbation–theoretic treatment of nuclear matter. However, their potential is unrealistic in that the requirements of meson theory are in no way satisfied in the long-range region. It is shown here that a potential whose long-range part conforms to the OBEP of Bryan and Scott can still be made to fit the phase shifts without increasing significantly the second-order terms. Thus, with meson theory being incapable of making an unequivocal statement about the short-range region, it will only be by resorting to the experimental evidence for short-range correlations in nuclei that one will be able to resolve the question as to whether or not an interaction as smooth as the one considered here can be regarded as "real" rather than merely "effective". In any event, the existence of such correlations cannot be inferred from the singlet nucleon–nucleon data.

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