^6Li→α+d and ^7Li→α+t Breakup Reactions in a Strong Coulomb Field(Microscopic Cluster Models of Light Nuclei and Related Topics)
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概要
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The nuclear-breakup and Coulomb-breakup contributions to ^6Li → α + d and ^7Li → α + t breakup reactions which are used to access to the radiative capture reactions important in nuclear astrophysics are investigated by three-body calculations with the use of the realistic cluster-model wave functions for the bound and unbound states of ^6Li and ^7Li. For incident energies well above the Coulomb barrier, the nuclear-breakup contribution is as important as the Coulomb-breakup one up to forward angles where the Coulomb breakup was believed to be dominant. The effects of multi-step processes via various nonresonant continuum states due to the three-body dynamics are also found to be important. On the other hand, at sub-barrier energies the Coulomb-breakup contribution dominates over the nuclear-breakup one and the effect of multi-step process may be factored out.
- 素粒子論グループ 素粒子研究編集部の論文
- 1993-05-20
著者
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Hirabayashi Y
Hokkaido Univ. Sapporo
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Hirabayashi Yoshiharu
Research Center for Nuclear Physics, Osaka University