Low-lying inelastic channel couplings versus breakup effects on the fusion cross section

In this study the calculations of the total fusion reaction cross section have been performed for fusion reaction systems 17F + 208Pb and 15C + 232Th which involving halo nuclei by using a semiclassical approach.The semiclassical treatment is comprising the WKB approximation to describe the relative motion between target and projectile nuclei, and Continuum Discretized Coupled Channel (CDCC) method to describe the intrinsic motion for both target and projectile nuclei. For the same of comparsion a full quantum mechanical clacualtions have been preforemd using the (CCFULL) code. Our theorticalrestuls are compared with the full quantum mechaincialcalcuations and with the recent experimental data for the total fusion reaction Â checking the stability of the distancesThe coupled channel calculations of the total fusion cross section Ïƒfus, and the fusion barrier distribution Dfus. The comparsion with experiment proves that the semiclassiacl approach adopted in the present work reproduce the experimental data better that the full quantal mechanical calcautions.Â

Download Full-text

Heavy-ion fusion cross-section calculations in classical microscopic equations of motion approach

Pramana ◽

10.1007/bf02846806 ◽

1987 ◽

Vol 28 (1) ◽

pp. 41-44 ◽

Cited By ~ 3

Author(s):

S S Godre ◽

Y R Waghmare

Keyword(s):

Cross Section ◽

Equations Of Motion ◽

Fusion Cross Section ◽

Heavy Ion ◽

Heavy Ion Fusion

Download Full-text

IMPORTANCE OF DEFORMATION AND ORIENTATION OF NUCLEAR SHAPES FOR THE SYNTHESIS OF SUPER-HEAVY ELEMENTS

International Journal of Modern Physics E ◽

10.1142/s0218301304002193 ◽

2004 ◽

Vol 13 (01) ◽

pp. 361-366 ◽

Cited By ~ 1

Author(s):

M. KOWAL ◽

Z. ŁOJEWSKI

Keyword(s):

Potential Energy ◽

Cross Section ◽

Heavy Ion Collisions ◽

Fusion Cross Section ◽

Heavy Ion ◽

Heavy Elements ◽

Axially Symmetric ◽

Deformation Degree ◽

Fusion Barrier ◽

Ion Collisions

We are studying the potential energy describing the entrance channel of a heavy-ion collisions for the axially symmetric deformed and arbitrarily oriented nuclear shapes. The paper presents an analysis of the influence of different orientations of the deformed ions on the height and shape of the fusion barrier. The net effect of the deformation degree of freedom on the transmission at sub-barrier energies is to enhance the fusion cross section. This problem is very important especially in the perspective of the synthesis of super-heavy elements.

Download Full-text

Influence of halo single-neutron transfer on near barrier $$^{15}$$C + $$^{12}$$C total fusion

The European Physical Journal A ◽

10.1140/epja/s10050-021-00476-x ◽

2021 ◽

Vol 57 (5) ◽

Author(s):

N. Keeley ◽

K. W. Kemper ◽

K. Rusek

Keyword(s):

Cross Section ◽

Fusion Cross Section ◽

Transfer Reactions ◽

Halo Nuclei ◽

Neutron Halo ◽

Neutron Transfer ◽

Model Calculations ◽

Single Neutron ◽

Barrier Penetration ◽

Total Fusion

AbstractA recent comparison of the average fusion cross section, $$\left\langle \sigma _\mathrm {F}\right\rangle $$ σ F , for energies just above the Coulomb barrier for the $$^{12-15}$$ 12 - 15 C + $$^{12}$$ 12 C systems found that the behaviour as a function of projectile neutron excess could not be satisfactorily explained by static barrier penetration model calculations and suggested that the neutron dynamics plays an important rôle. In this work we demonstrate that the ($$^{15}$$ 15 C,$$^{14}$$ 14 C) single neutron transfer has a significant influence on the above barrier $$^{15}$$ 15 C + $$^{12}$$ 12 C total fusion, although not quite in the way expected since it leads to a reduction in the cross section, contrary to the trend in the measured $$\left\langle \sigma _\mathrm {F}\right\rangle $$ σ F . However, this result underlines the danger of ignoring the effect of neutron transfer reactions on fusion in systems involving neutron halo nuclei.

Download Full-text