Nucleon-nucleon correlations in heavy ion transfer reactions: Recent investigations at energies far below the Coulomb barrier

2015 ◽  
Author(s):  
Lorenzo Corradi
1973 ◽  
Vol 45 (3) ◽  
pp. 231-234 ◽  
Author(s):  
N. Anyas-Weiss ◽  
J. Becker ◽  
T.A. Belote ◽  
J.C. Cornell ◽  
P.S. Fisher ◽  
...  

1996 ◽  
Vol 74 (3-4) ◽  
pp. 150-154 ◽  
Author(s):  
A. A. Farra

Heavy-ion transfer reactions are studied using the exact finite-range DWBA (distorted wave Born approximation) calculations. To investigate the differential cross sections in the whole-angle region the reaction mechanism is considered as a coherent sum of direct and exchange processes. Both the double-folding microscopic nucleon–nucleon interaction and phenomenological Woods–Saxon form are used for the real and imaginary distorting potentials in the initial and final channels, respectively. The present calculations are in good agreement with the experimental data in the whole angular range. The inclusion of the exchange process improves the cross section's magnitude explicitly and leads to a better description of the backward oscillations. The values of the extracted normalization coefficients obtained are reasonable.


1971 ◽  
Vol 36 (1) ◽  
pp. 24-27 ◽  
Author(s):  
P.J. Siemens ◽  
J.P. Bondorf ◽  
D.H.E. Gross ◽  
F. Dickmann

2020 ◽  
Vol 1643 ◽  
pp. 012097
Author(s):  
T Mijatović ◽  
S Szilner ◽  
L Corradi ◽  
F Galtarossa ◽  
D Montanari ◽  
...  

2019 ◽  
Vol 223 ◽  
pp. 01064 ◽  
Author(s):  
Suzana Szilner ◽  
Lorenzo Corradi ◽  
Giovanni Pollarolo ◽  
Giulia Colucci ◽  
Petra Čolović ◽  
...  

We present selected results recently obtained in the study of heavy ion transfer reactions at energies close to the Coulomb barrier by employing the large solid angle magnetic spectrometer PRISMA. We discuss the production of neutron-rich heavy nuclei via multinucleon transfer processes and the related effects of secondary processes, in particular nucleon evaporation, studied in a high resolution kinematic coincidence experiment. We also present the recent results in the studies of neutron-neutron correlations for closed shell and superfluid systems.


2011 ◽  
Vol 20 (12) ◽  
pp. 2407-2415
Author(s):  
M. ISMAIL ◽  
M. M. BOTROS ◽  
A. A. WHEIDA

The accuracy of multipole expansion of density distribution for deformed nuclei is tested. The interaction potential for a deformed-spherical pair of nuclei was calculated using the folding model derived from zero-range nucleon–nucleon (NN) interaction. We considered two spherical projectiles Ca 40 and Pb 208 scattered on U 238 deformed target nucleus. The error in the heavy ion (HI) potential resulting from using a truncated multipole density expansion is evaluated for each case in the presence of octupole deformation δ3 besides quadrupole δ2. We are interested in the value of error for R ≥ RT (touching distance). We found that for values of |δ3|≤0.1 the error at R = RT reaches reasonable values when six terms expansion is used. For |δ3| = 0.2, we calculated the Coulomb barrier parameters using realistic NN force and found that the large error present in six terms for zero range force decreases strongly to less than 1% when the zero range is added to finite range forces and Coulomb interaction to form the Coulomb barrier. It is noted that the negative value of octupole deformation parameters δ3 = -0.1 produce error at orientation angle θ equal in value to that produced at angle (180°-θ) for the positive values δ3 = 0.1. We also found that the error decreases as the mass number of the projectile nucleus increases.


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