scholarly journals Nucleon-nucleon momentum correlation function for light nuclei

2007 ◽  
Vol 790 (1-4) ◽  
pp. 299c-302c ◽  
Author(s):  
Y.G. Ma ◽  
X.Z. Cai ◽  
J.G. Chen ◽  
D.Q. Fang ◽  
W. Guo ◽  
...  
Keyword(s):  
Correlation Function ◽  
Nucleon Nucleon ◽  
Light Nuclei ◽  
Nucleon Momentum ◽  
Momentum Correlation

scholarly journals Nucleon-nucleon momentum-correlation function as a probe of the density distribution of valence neutrons in neutron-rich nuclei

2012 ◽  
Vol 86 (4) ◽  
Author(s):  
X. G. Cao ◽  
X. Z. Cai ◽  
Y. G. Ma ◽  
D. Q. Fang ◽  
G. Q. Zhang ◽  
...  
Keyword(s):  
Correlation Function ◽  
Density Distribution ◽  
Nucleon Nucleon ◽  
Nucleon Momentum ◽  
Momentum Correlation

scholarly journals Surveying the nucleon-nucleon momentum correlation function in the framework of quantum molecular dynamics model

2006 ◽  
Vol 73 (1) ◽  
Author(s):  
Y. G. Ma ◽  
Y. B. Wei ◽  
W. Q. Shen ◽  
X. Z. Cai ◽  
J. G. Chen ◽  
...  
Keyword(s):  
Molecular Dynamics ◽  
Correlation Function ◽  
Nucleon Nucleon ◽  
Quantum Molecular Dynamics ◽  
Dynamics Model ◽  
Nucleon Momentum ◽  
Momentum Correlation

scholarly journals Proton-proton momentum correlation function as a probe of the high momentum tail of the nucleon-momentum distribution

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
Gao-Feng Wei ◽  
Xi-Guang Cao ◽  
Qi-Jun Zhi ◽  
Xin-Wei Cao ◽  
Zheng-Wen Long
Keyword(s):  
Correlation Function ◽  
Momentum Distribution ◽  
Proton Momentum ◽  
High Momentum ◽  
Proton Proton ◽  
Nucleon Momentum ◽  
Momentum Correlation

scholarly journals Low-energy neutron scattering on light nuclei and $^{19}$B as a $^{17}$B-$n$-$n$ three-body system in the unitary limit

2020 ◽  
Author(s):  
Jaume Carbonell ◽  
Emiko Hiyama ◽  
Rimantas Lazauskas ◽  
Francisco Miguel Marqués
Keyword(s):  
Scattering Length ◽  
Nucleon Nucleon ◽  
Light Nuclei ◽  
Unitary Limit ◽  
Body System ◽  
Resonant States ◽  
Pauli Repulsion ◽  
Nucleus Scattering ◽  
Nucleon Nucleon Interaction ◽  
Three Body

We consider the evolution of the neutron-nucleus scattering length for the lightest nuclei. We show that, when increasing the number of neutrons in the target nucleus, the strong Pauli repulsion is weakened and the balance with the attractive nucleon-nucleon interaction results into a resonant virtual state in ^{18}18B. We describe ^{19}19B in terms of a ^{17}17B-nn-nn three-body system where the two-body subsystems ^{17}17B-nn and nn-nn are unbound (virtual) states close to the unitary limit. The energy of ^{19}19B ground state is well reproduced and two low-lying resonances are predicted. Their eventual link with the Efimov physics is discussed. This model can be extended to describe the recently discovered resonant states in ^{20,21}20,21B.

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

MEASUREMENT OF THE PROTON-PROTON CORRELATION FUNCTION FROM THE BREAK-UP OF 22Mg AND 20Ne

2010 ◽  
Vol 19 (08n09) ◽  
pp. 1823-1828 ◽  
Author(s):  
X. Y. SUN ◽  
J. G. CHEN ◽  
D. Q. FANG ◽  
Y. G. MA ◽  
X. Z. CAI ◽  
...  
Keyword(s):  
Correlation Function ◽  
Excited States ◽  
Correlation Functions ◽  
Center Of Mass ◽  
Cluster Decay ◽  
Proton Proton ◽  
Fragment Separator ◽  
Angular Correlations ◽  
Momentum Correlation ◽  
Projectile Fragment

An experiment of 22 Mg and 20 Ne beams bombarding on a 12 C target at an energy of 60~70 A MeV has been performed at the RIKEN projectile fragment separator (RIPS) in the RIKEN Ring Cyclotron Facility to study the two-proton correlated emission from 22 Mg and 20 Ne excited states. The two-protons momentum correlation functions have been obtained for 22 Mg and 20 Ne , respectively. The trajectories of the 22 Mg decayed products (20 Ne + p + p ) were also measured to get the angular correlations between the two protons in Center of Mass of decaying system by relativistic-kinematics reconstruction. The results exhibit that 22 Mg has the features of 2 He cluster decay mechanism.

scholarly journals NUCLEAR MEAN-FIELD DESCRIPTION OF PROTON ELASTIC SCATTERING BY 12,13 C AT LOW ENERGIES

2020 ◽  
Vol 31 (1) ◽  
Author(s):  
Huan Nhut Phan
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Nuclear Reactions ◽  
Mean Field ◽  
Nuclear Astrophysics ◽  
Nucleon Nucleon ◽  
Light Nuclei ◽  
Intermediate Energies ◽  
Proton Elastic Scattering ◽  
Low Energies

Nuclear reactions of proton by light nuclei at low energies play a key role in the study ofnucleosynthesis which is of interest in nuclear astrophysics. The most fundamental process whichis very necessary is the elastic scattering. In this work, we construct a microscopic proton-nucleuspotential in order to describe the differential cross-sections over scattering angles of the protonelastic scattering by 12C and 13C in the range of available energies 14 - 22 MeV. The microscopicoptical potential is based on the folding model using the effective nucleon-nucleon interactionCDM3Yn. The results show the promising use of the CDM3Yn interactions at low and very lowenergies, which were originally used for nuclear reactions at intermediate energies. This could bethe premise for the study of nuclear reactions using CDM3Yn interaction in astrophysics at lowenergies.

scholarly journals Quasi-free scattering in inverse kinematics as a tool to unveil the structure of nuclei

2021 ◽  
Vol 57 (3) ◽  
Author(s):  
V. Panin ◽  
T. Aumann ◽  
C. A. Bertulani
Keyword(s):  
Inverse Kinematics ◽  
Short Range ◽  
Nucleon Nucleon ◽  
Light Nuclei ◽  
Radioactive Beams ◽  
Particle Structure ◽  
Ongoing Research ◽  
The Past ◽  
Characteristic Features ◽  
Large Research

AbstractQuasi-free scattering of electrons and protons has been extensively utilized in the past to study the single-particle structure of nuclei, clustering in light nuclei, and short-range correlated nucleon–nucleon pairs in nuclei. Recently, this approach has been applied in inverse kinematics using hydrogen targets. The characteristic features of this reaction and the experimental challenges and advantages of inverse-kinematics experiments are summarized. The applicability to radioactive beams opens a large research potential to study a variety of properties of neutron-to-proton asymmetric nuclei. Applications of quasi-free scattering in inverse kinematics and its potential are reviewed based on recent and ongoing research programs at different accelerator facilities worldwide.

scholarly journals Production of $$^4\mathrm{Li}$$ and $$p\!-\!^3\mathrm{He}$$ correlation function in relativistic heavy-ion collisions

2020 ◽  
Vol 56 (7) ◽  
Author(s):  
Sylwia Bazak ◽  
Stanisław Mrówczyński
Keyword(s):  
Correlation Function ◽  
Heavy Ion Collisions ◽  
Coulomb Repulsion ◽  
Heavy Ion ◽  
Light Nuclei ◽  
Relativistic Heavy Ion Collisions ◽  
Weakly Bound ◽  
Ion Collisions ◽  
Internal Structures ◽  
The Masses

Abstract The thermal and coalescence models both describe well yields of light nuclei produced in relativistic heavy-ion collisions at LHC. We propose to measure the yield of $$^4\mathrm{Li}$$ 4 Li and compare it to that of $$^4\mathrm{He}$$ 4 He to falsify one of the models. Since the masses of $$^4\mathrm{He}$$ 4 He and $$^4\mathrm{Li}$$ 4 Li are almost equal, the yield of $$^4\mathrm{Li}$$ 4 Li is about 5 times bigger than that of $$^4\mathrm{He}$$ 4 He in the thermal model because of different numbers of spin states of the two nuclides. Their internal structures are, however, very different: the alpha particle is well bound and compact while $$^4\mathrm{Li}$$ 4 Li is weakly bound and loose. Consequently, the ratio of yields of $$^4\mathrm{Li}$$ 4 Li to $$^4\mathrm{He}$$ 4 He is significantly smaller in the coalescence model and it strongly depends on the collision centrality. Since the nuclide $$^4\mathrm{Li}$$ 4 Li is unstable and it decays into $$^3\mathrm{He}$$ 3 He and p, the yield of $$^4\mathrm{Li}$$ 4 Li can be experimentally obtained through a measurement of the $$p\!-\!^3\mathrm{He}$$ p - 3 He correlation function. The function carries information not only about the yield of $$^4\mathrm{Li}$$ 4 Li but also about the source of $$^3\mathrm{He}$$ 3 He and allows one to determine through a source-size measurement whether of $$^3\mathrm{He}$$ 3 He is directly emitted from the fireball or it is formed afterwards. We compute the correlation function taking into account the s-wave scattering and Coulomb repulsion together with the resonance interaction responsible for the $$^4\mathrm{Li}$$ 4 Li nuclide. We discuss how to infer information about an origin of $$^3\mathrm{He}$$ 3 He from the correlation function, and finally a method to obtain the yield of $$^4\mathrm{Li}$$ 4 Li is proposed.

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