Quantum mechanical reaction cross sections for the three‐dimensional hydrogen exchange reaction

1975 ◽  
Vol 62 (6) ◽  
pp. 2504-2506 ◽  
Author(s):  
Allan B. Elkowitz ◽  
Robert E. Wyatt
Keyword(s):  
Exchange Reaction ◽  
Cross Sections ◽  
Hydrogen Exchange ◽  
Three Dimensional ◽  
Reaction Cross ◽  
Quantum Mechanical ◽  
Reaction Cross Sections

Measurement of absolute partial reaction cross sections for the hydrogen exchange reaction

1988 ◽  
Vol 143 (4) ◽  
pp. 317-322 ◽  
Author(s):  
Harold B. Levene ◽  
David L. Phillips ◽  
Jong-Chen Nieh ◽  
Daniel P. Gerrity ◽  
James J. Valentini
Keyword(s):  
Exchange Reaction ◽  
Cross Sections ◽  
Hydrogen Exchange ◽  
Reaction Cross ◽  
Partial Reaction ◽  
Reaction Cross Sections

Dynamics of the H + O2→ O + OH Chain-Branching Reaction:  Accurate Quantum Mechanical and Experimental Absolute Reaction Cross Sections

2001 ◽  
Vol 105 (13) ◽  
pp. 3359-3364 ◽  
Author(s):  
Mohammed Abu Bajeh ◽  
Evelyn M. Goldfield ◽  
Alexander Hanf ◽  
Christoph Kappel ◽  
Anthony J. H. M. Meijer ◽  
...  
Keyword(s):  
Cross Sections ◽  
Reaction Cross ◽  
Quantum Mechanical ◽  
Chain Branching ◽  
Absolute Reaction ◽  
Reaction Cross Sections

Formation of α clusters in dilute neutron-rich matter

Science ◽  
2021 ◽  
Vol 371 (6526) ◽  
pp. 260-264 ◽  
Author(s):  
Junki Tanaka ◽  
Zaihong Yang ◽  
Stefan Typel ◽  
Satoshi Adachi ◽  
Shiwei Bai ◽  
...  
Keyword(s):  
Cross Sections ◽  
Cluster Formation ◽  
Reaction Cross ◽  
Skin Thickness ◽  
Neutron Skin ◽  
Heavy Nuclei ◽  
Α Decay ◽  
Neutron Skin Thickness ◽  
Reaction Cross Sections ◽  
Α Particles

The surface of neutron-rich heavy nuclei, with a neutron skin created by excess neutrons, provides an important terrestrial model system to study dilute neutron-rich matter. By using quasi-free α cluster–knockout reactions, we obtained direct experimental evidence for the formation of α clusters at the surface of neutron-rich tin isotopes. The observed monotonous decrease of the reaction cross sections with increasing mass number, in excellent agreement with the theoretical prediction, implies a tight interplay between α-cluster formation and the neutron skin. This result, in turn, calls for a revision of the correlation between the neutron-skin thickness and the density dependence of the symmetry energy, which is essential for understanding neutron stars. Our result also provides a natural explanation for the origin of α particles in α decay.

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.

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