Total reaction cross section from the difference of the Rutherford and measured elastic cross sections

Coulomb modified Glauber model has been applied to calculate α total reaction cross-section for 12 C , 16 O and 40 Ca nuclei in the rigid projectile model using microscopic N-α amplitude which is evaluated in terms of NN scattering amplitude parameters. Using realistic densities for target nuclei and the same input information, we find that the predictions of the rigid projectile approximation for α reaction cross sections are, in general, in better agreement with the experimental data than those of the optical limit approximation.

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ESTIMATION OF THE BREAKUP CROSS-SECTIONS IN 6He + 12C REACTION WITHIN HIGH-ENERGY APPROXIMATION AND MICROSCOPIC OPTICAL POTENTIAL

International Journal of Modern Physics E ◽

10.1142/s0218301311019738 ◽

2011 ◽

Vol 20 (09) ◽

pp. 2039-2047 ◽

Cited By ~ 6

Author(s):

V. K. LUKYANOV ◽

E. V. ZEMLYANAYA ◽

K. V. LUKYANOV

Keyword(s):

Cross Section ◽

Cross Sections ◽

Reaction Cross Section ◽

High Energy ◽

Reaction Cross ◽

Total Reaction Cross Section ◽

Total Reaction ◽

Energy Approximation ◽

Double Folding ◽

Microscopic Optical Potential

The breakup cross-sections in the reaction 6 He + 12 C are calculated at about 40 MeV/nucleon using the high-energy approximation (HEA) and with the help of microscopic optical potentials (OP) of interaction with the target nucleus 12 C of the projectile nucleus fragments 4 He and 2n. Considering the di-neutron h = 2n as a single particle the relative motion hα wave function is estimated so that to explain both the separation energy of h in 6 He and the rms radius of the latter. The stripping and absorbtion total cross-sections are calculated and their sum is compared with the total reaction cross-section obtained within a double-folding microscopic OP for the 6 He + 12 C scattering. It is concluded that the breakup cross-sections contribute to about 50% of the total reaction cross-section.

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7Be and 8B reaction dynamics at Coulomb barrier energies

EPJ Web of Conferences ◽

10.1051/epjconf/201818402015 ◽

2018 ◽

Vol 184 ◽

pp. 02015

Author(s):

E. Strano ◽

M. Mazzocco ◽

A. Boiano ◽

C. Boiano ◽

M. La Commara ◽

...

Keyword(s):

Cross Sections ◽

Coulomb Barrier ◽

Reaction Cross Section ◽

Optical Model ◽

Reaction Dynamics ◽

Reaction Cross ◽

Total Reaction Cross Section ◽

Weakly Bound ◽

Total Reaction ◽

Reaction Cross Sections

We investigated the reaction dynamics induced by the 7Be,8B+208Pb collisions at energies around the Coulomb barrier. Charged particles originated by both the col- lisions were detected by means of 6 ΔE-Eres telescopes of a newly developed detector array. Experimental data were analysed within the framework of the Optical Model and the total reaction cross-sections were compared together and with the 6,7Li+208Pb colli-sion data. According to the preliminary results, 7Be nucleus reactivity is rather similar to the 7Li one whereas the 8B+208Pb total reaction cross section appears to be much larger than those measured for reactions induced by the other weakly-bound projectiles on the same target.

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