Heavy-Ion Fusion Reactions

Mosel, U.

doi:10.1007/978-1-4615-8091-1_1

Cited by 3 publications

(2 citation statements)

References 95 publications

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“…As the energy increases the system may not be able to accommodate this conversion of energy without breaking apart. A plausible interpretation of the analysis of the present work suggests the existence of a phenomenon similar to a "fusion window" [10].…”

supporting

confidence: 57%

Inverse-kinematics study of⁷⁸Kr +⁴⁰Ca at 10 AMeV

Henry

2015

EPJ Web of Conferences

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The CHIMERA multi-detector array at LNS Catania has been used to study the inverse-kinematics reaction of 78 Kr + 40 Ca at a bombarding energy of 10 AMeV. Analysis of the experimental data focused on a class of selected events consistent with the complete fusion and subsequent binary split of the of the reacting system. This class of events features a broad A, Z distribution of fission fragments centered about symmetric fission while exhibiting relative velocities significantly higher than given by Viola systematics. The center-ofmass angular distribution (dσ/dΘ) of the fission fragments exhibit an unexpected anisotropy inconsistent with a compound-nucleus reaction and indicates a dynamic fusion-fission like process. The observed angular distribution features an asymmetric forward-backward peaking most prevalent for mass-asymmetric events. Furthermore, the more massive fragment of mass-asymmetric events appears to emerge preferentially in the forward direction, along the beam axis, in analogy to dynamic fragmentation of projectile-like fragments. Analysis of the angular distribution of alpha particles emitted from these fission fragments suggests the events are associated mostly with central collisions.The study of low-energy heavy-ion reaction dynamics in the energy domain moderately in excess of the Coulomb barrier offers a unique insight into the large-scale collective motion of the nucleons in the nucleus. Fusion-fission constitutes an important reaction channel for many such nuclear reactions and is an important probe into the nuclear structure of matter. As the bombarding energy increases, the role of dynamically-induced decay modes

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supporting

confidence: 57%

Inverse-kinematics study of⁷⁸Kr +⁴⁰Ca at 10 AMeV

Henry

2015

EPJ Web of Conferences

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“…It must be stressed that these level crossings occur in diabatic solutions and are appropriate only if the reaction process is fast. As Mosel pointed out [42], the simple Harvey prescription contains all the information on level crossings incorporated in the much more complex calculation-these are a general consequence of the Pauli principle and not dependent on a specific model. The great advantage of the Harvey model is that it can be easily applied to many different systems, can be used to explore the effect of re-arrangements of levels in the interacting nuclei and can be extended to include the effects of deformation.…”

Section: Microscopic Descriptionsmentioning

confidence: 99%