Reaction cross sections forB8,Be7, andLi6+Ni58near the Coulomb barrier: Proton-halo effects

2009 ◽  
Vol 79 (2) ◽  
Author(s):  
E. F. Aguilera ◽  
E. Martinez-Quiroz ◽  
D. Lizcano ◽  
A. Gómez-Camacho ◽  
J. J. Kolata ◽  
...  
Keyword(s):  
Cross Sections ◽  
Coulomb Barrier ◽  
Reaction Cross ◽  
Halo Effects ◽  
Reaction Cross Sections ◽  
Proton Halo

scholarly journals 7Be and 8B reaction dynamics at Coulomb barrier energies

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.

COULOMB BARRIER TRANSMISSION RESONANCE FOR ASTROPHYSICAL PROBLEMS

1993 ◽  
Vol 07 (24n25) ◽  
pp. 1627-1631 ◽  
Author(s):  
YEONG E. KIM ◽  
ALEXANDER L. ZUBAREV
Keyword(s):  
Transmission Coefficient ◽  
Cross Sections ◽  
Coulomb Barrier ◽  
Charged Particles ◽  
Separation Distance ◽  
Reaction Cross ◽  
Nuclear Surface ◽  
Transmission Resonance ◽  
Low Energies ◽  
Reaction Cross Sections

In estimating the nonresonance nuclear reaction cross sections σ(E) at low energies (≲20 keV) needed for astrophysical calculations, it is customary to extrapolate higher energy (≳20 keV) data for σ(E) to low energies using the Gamow transmission coefficient representing the probability of bringing two charged particles to zero separation distance, which is unphysical and unrealistic since the Coulomb barrier does not exist inside the nuclear surface. We present a general extrapolation method based on a more realistic barrier transmission coefficient, which can accommodate simultaneously both nonresonance and resonance contributions.

Reaction cross sections in Si of light proton-halo candidates 12N and 17Ne

1998 ◽  
Vol 635 (3) ◽  
pp. 292-304 ◽  
Author(s):  
R.E. Warner ◽  
H. Thirumurthy ◽  
J. Woodroffe ◽  
F.D. Becchetti ◽  
J.A. Brown ◽  
...  
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Reaction Cross Sections ◽  
Proton Halo

Evidence for a proton halo in 27P through measurements of reaction cross-sections at intermediate energies

2001 ◽  
Vol 12 (3) ◽  
pp. 335-339 ◽  
Author(s):  
D.Q. Fang ◽  
W.Q. Shen ◽  
J. Feng ◽  
X.Z. Cai ◽  
H.Y. Zhang ◽  
...  
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Intermediate Energies ◽  
Reaction Cross Sections ◽  
Proton Halo
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