Near-Barrier Elastic Scattering of Weakly Bound Nuclei and the Threshold Anomaly

2005 ◽  
Author(s):  
M. S. Hussein
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 ◽  
...  

2019 ◽  
Vol 223 ◽  
pp. 01058
Author(s):  
O. Sgouros ◽  
V. Soukeras ◽  
A. Pakou ◽  
F. Cappuzzello ◽  
L. Acosta ◽  
...  

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.


2008 ◽  
Vol 17 (10) ◽  
pp. 2326-2330 ◽  
Author(s):  
A. S. DENIKIN ◽  
V. I. ZAGREBAEV ◽  
P. DESCOUVEMONT

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.


2012 ◽  
Vol 27 (21) ◽  
pp. 1250118
Author(s):  
Y. SERT ◽  
T. CANER ◽  
O. BAYRAK ◽  
I. BOZTOSUN

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.


2012 ◽  
Author(s):  
G. V. Martí ◽  
L. Fimiani ◽  
J. M. Figueira ◽  
J. E. Testoni ◽  
A. Arazi ◽  
...  

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 ◽  
...  

2019 ◽  
Vol 65 (4 Jul-Aug) ◽  
pp. 404
Author(s):  
M. Aygun ◽  
And Z. Aygun

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.


2019 ◽  
Vol 18 ◽  
pp. 201
Author(s):  
K. Zerva ◽  
... Et al.

We have performed, elastic backscattering measurements for the weakly bound nuclei 6,7Li on the medium and heavy mass targets 58Ni, 116,120Sn, 208Pb at sub- and near-barrier energies (0.6 to 1.3 EC.b.). Excitation functions of elastic scattering cross sections have been measured at 160O and 170O and the corresponding ratios to Rutherford scattering and relevant barrier distributions have been extracted. These measurements will complement recent work on a 28Si target for probing the potential at sub- and near barrier energies and relevant reaction mechanisms.


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