The role of nucleon-nucleon short-range correlations in the nuclear structure function in thex > 1 region

1990 ◽  
Vol 336 (1) ◽  
pp. 97-101
Author(s):  
Zhijun Cao ◽  
Jianping Shen ◽  
Guanglie Li
Keyword(s):  
Structure Function ◽  
Nuclear Structure ◽  
Short Range ◽  
Nucleon Nucleon ◽  
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 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.

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

scholarly journals RECENT OBSERVATION OF SHORT-RANGE NUCLEON CORRELATIONS IN NUCLEI AND THEIR IMPLICATIONS FOR THE STRUCTURE OF NUCLEI AND NEUTRON STARS

2008 ◽  
Vol 23 (20) ◽  
pp. 2991-3055 ◽  
Author(s):  
LEONID FRANKFURT ◽  
MISAK SARGSIAN ◽  
MARK STRIKMAN
Keyword(s):  
Neutron Stars ◽  
Short Range ◽  
Degrees Of Freedom ◽  
Cold Neutron ◽  
Recent Observation ◽  
Experimental Studies ◽  
Heavy Nuclei ◽  
Short Range Correlations ◽  
Fast Removal

Novel processes probing the decay of nucleus after removal of a nucleon with momentum larger than Fermi momentum by hard probes finally proved unambiguously the evidence for long sought presence of short-range correlations (SRC's) in nuclei. In combination with the analysis of large Q2, A(e, e')X processes at x > 1 they allow us to conclude that (i) practically all nucleons with momenta ≥ 300 MeV /c belong to SRC's, consisting mostly of two nucleons, (ii) probability of such SRC's in medium and heavy nuclei is ~25%, (iii) a fast removal of such nucleon practically always leads to emission of correlated nucleon with approximately opposite momentum, (iv) proton removal from two-nucleon SRC's in 90% of cases is accompanied by a removal of a neutron and only in 10% by a removal of another proton. We explain that observed absolute probabilities and the isospin structure of two nucleon SRC's confirm the important role that tensor forces play in internucleon interactions. We also find that the presence of SRC's requires modifications of the Landau Fermi liquid approach to highly asymmetric nuclear matter and leads to a significantly faster cooling of cold neutron stars with neutrino cooling operational even for Np/Nn ≤ 0.1. The effect is even stronger for the hyperon stars. Theoretical challenges raised by the discovered dominance of nucleon degrees of freedom in SRC's and important role of the spontaneously broken chiral symmetry in quantum chromodynamics (QCD) in resolving them are considered. We also outline directions for future theoretical and experimental studies of the physics relevant for SRC's.

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