Elastic scattering of nuclear systems induced by weakly bound projectiles

2012 ◽  
Author(s):  
G. V. Martí ◽  
L. Fimiani ◽  
J. M. Figueira ◽  
J. E. Testoni ◽  
A. Arazi ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Weakly Bound ◽  
Nuclear Systems

scholarly journals Elastic Scattering and Reaction Cross-section of 8Li on 209Bi

2020 ◽  
Vol 227 ◽  
pp. 02010
Author(s):  
C. Sengupta ◽  
K.J. Cook ◽  
E.C. Simpson ◽  
M. Dasgupta ◽  
D.J. Hinde ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Reaction Mechanisms ◽  
Nuclear Physics ◽  
Reaction Cross Section ◽  
Cluster Structure ◽  
Reaction Cross ◽  
Weakly Bound ◽  
Nuclear Systems ◽  
Reaction Cross Sections

Nuclear physics in the 21st century is driven by a quest to understand the properties of ever more exotic nuclear systems. Unusual structural phenom- ena are observed to arise in light weakly bound nuclei such as 8Li. 8Li has a cluster structure core of 7Li surrounded by a loosely bound neutron which is observed to influence reaction mechanisms near the fusion barrier. Elastic scat- tering provides a vital step towards understanding more complicated reaction mechanisms. In this work, elastic scattering was measured for 8Li + 2°9Bi at energies 2% to 34% above the barrier, allowing extraction of reaction cross- sections. The systematics of the reaction cross-sections of 8Li compared to neighbouring nuclei 6,7,9,11Li are discussed.

scholarly journals Study of cluster structures in nuclei through the ratio method

2020 ◽  
Vol 56 (12) ◽  
Author(s):  
Pierre Capel ◽  
Ronald C. Johnson ◽  
Filomena M. Nunes
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Intermediate Energy ◽  
Halo Nuclei ◽  
Ratio Method ◽  
Angular Distributions ◽  
Neutron Halo ◽  
Target Interaction ◽  
Nuclear Systems ◽  
Reaction Channels

AbstractFor one-neutron halo nuclei, the cross sections for elastic scattering and breakup at intermediate energy exhibit similar angular dependences. The Recoil Excitation and Breakup (REB) model of reactions elegantly explains this feature. It also leads to the idea of a new reaction observable to study the structure of loosely-bound nuclear systems: the Ratio. This observable consists of the ratio of angular distributions for different reaction channels, viz. elastic scattering and breakup, which cancels most of the dependence on the reaction mechanism; in particular it is insensitive to the choice of optical potentials that simulate the projectile-target interaction. This new observable is very sensitive to the structure of the projectile. In this article, we review a series of previous papers, which have introduced the Ratio Method and its extension to low beam energies and proton-halo nuclei.

The Threshold Anomaly of weakly bound projectiles from recent elastic scattering measurements around the Coulomb barrier

2010 ◽  
Vol 833 (1-4) ◽  
pp. 156-171 ◽  
Author(s):  
A. Gómez Camacho ◽  
E.F. Aguilera ◽  
E. Martínez Quiroz ◽  
P.R.S. Gomes ◽  
J. Lubian ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Coulomb Barrier ◽  
Weakly Bound ◽  
Scattering Measurements

scholarly journals Study of continuum excitation by light weakly bound projectiles on proton target

2019 ◽  
Vol 223 ◽  
pp. 01058
Author(s):  
O. Sgouros ◽  
V. Soukeras ◽  
A. Pakou ◽  
F. Cappuzzello ◽  
L. Acosta ◽  
...  
Keyword(s):  
Angular Distribution ◽  
Elastic Scattering ◽  
Rest Frame ◽  
Laboratory Frame ◽  
Distribution Data ◽  
Weakly Bound ◽  
Simulation Code ◽  
Elastic Channel ◽  
Breakup Channel ◽  
History Of

Elastic scattering and breakup angular distribution measurements for the systems 6,7Li + p were performed at the MAGNEX facility of the Istituto Nazionale di Fisica Nucleare-Laboratori Nazionali del Sud (INFN-LNS) in Catania, in the energy range of (2.3–5.4)AMeV. The breakup channel was identified and quantified adopting the algorithm MULTIP.Within this algorithm which is a Monte Carlo simulation code, the history of the breakup fragments can be tagged from the rest frame of the decay nucleus itself to the laboratory frame. Angular distribution data of both elastic scattering and breakup were analyzed under the same theoretical model and the influence of continuum on the elastic channel was investigated.

GENERALIZED OPTICAL POTENTIAL OF LIGHT WEAKLY BOUND CLUSTER NUCLEI

2008 ◽  
Vol 17 (10) ◽  
pp. 2326-2330 ◽  
Author(s):  
A. S. DENIKIN ◽  
V. I. ZAGREBAEV ◽  
P. DESCOUVEMONT
Keyword(s):  
Elastic Scattering ◽  
Projection Operator ◽  
Cluster Model ◽  
Optical Potential ◽  
Operator Method ◽  
Cluster Models ◽  
Weakly Bound ◽  
Intermediate Energies ◽  
Optical Potentials ◽  
Projection Operator Method

A generalized optical potential for elastic scattering induced by light weakly bound nuclei is calculated within the Feshbach projection operator method. The model explicitly takes into account the contribution of the projectile break-up continuum treated within a microscopic cluster model. The model is tested on deuteron and 6Lielastic scattering by different targets at intermediate energies. The optical potentials are then calculated for the 6 He(230 MeV) +12Creaction treating the projectile nuclei within two (α + 2n) and three (α + n + n) cluster models. The differences are analyzed.

RADIAL SENSITIVITY OF THE ELASTIC SCATTERING AROUND THE COULOMB BARRIER ENERGIES FOR WEAKLY-BOUND AND HALO NUCLEI

2012 ◽  
Vol 27 (21) ◽  
pp. 1250118
Author(s):  
Y. SERT ◽  
T. CANER ◽  
O. BAYRAK ◽  
I. BOZTOSUN
Keyword(s):  
Elastic Scattering ◽  
Cross Section ◽  
Coulomb Barrier ◽  
Optical Potential ◽  
Theoretical Calculations ◽  
Fusion Cross Section ◽  
Halo Nuclei ◽  
Weakly Bound ◽  
Medium Mass ◽  
Good Agreement

The radial sensitivity of the elastic scattering of the weakly-bound 6 Li and halo 6 He nuclei on medium-mass 64 Zn target and heavy target 208 Pb is examined around the Coulomb barrier energies. We present that very good agreement between theoretical and experimental results have been obtained with small χ2/N values. The fusion cross-section and volume integrals of the potentials have been deduced from the theoretical calculations for all studied systems at relevant energies. We have also analyzed the elastic scattering of the 6 He +208 Pb system at E lab = 14, 16, 18, 22, 27 MeV in order to investigate whether there is a dispersion relation between the real and imaginary parts of the optical potential.

Reactions with Weakly Bound Nuclei, at near Barrier Energies, and the Breakup and Transfer Influences on the Fusion and Elastic Scattering

2015 ◽  
Vol 57 (3) ◽  
pp. 165-176 ◽  
Author(s):  
P. R. S. Gomes ◽  
J. Lubian ◽  
L. F. Canto ◽  
D. R. Otomar ◽  
D. R. Mendes Junior ◽  
...  
Keyword(s):  
Elastic Scattering ◽  
Weakly Bound

scholarly journals Microscopic analysis of elastic scattering cross sections for different densities of $^{8}$Li nucleus on light, medium and heavy mass targets

2019 ◽  
Vol 65 (4 Jul-Aug) ◽  
pp. 404
Author(s):  
M. Aygun ◽  
And Z. Aygun
Keyword(s):  
Elastic Scattering ◽  
Cross Sections ◽  
Microscopic Analysis ◽  
Angular Distributions ◽  
Weakly Bound ◽  
Density Distributions ◽  
Double Folding ◽  
Scattering Cross Sections ◽  
Light Medium ◽  
Good Agreement

The elastic scattering angular distributions of weakly bound nucleus$^{8}$Li on $^{7}$Li, $^{9}$Be, $^{12}$C, $^{13}$C, $^{14}$N,$^{27}$Al, $^{51}$V, $^{58}$Ni, and $^{208}$Pb are analyzed atvarious incident energies. For this purpose, the real potential isgenerated for nine different density distributions of the $^{8}$Linucleus by using the double folding model within the optical model.The theoretical results are in good agreement with the experimentaldata. In our study, also, new and practical sets of imaginarypotentials for the investigated densities are derived.

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