Mid Term Review

Reaction dynamics of 7Li interacting with light nuclei

Kaitlin Cook
Department Nuclear Physics

Understanding the breakup modes of weakly-bound nuclei such as 6,7Li, 9Be and timescales at which they occur is crucial for understanding how their weakly bound nature affects nuclear reaction outcomes such as fusion.  A large solid angle detector array, BALIN, comprising of four double sided silicon strip detectors has been developed at the ANU to make coincident measurements of charged breakup fragments that emerge following breakup. These measurements were very successful in understanding the reaction mechanism of 6,7Li, 9Be in interactions with heavy targets. To study the reaction mechanisms following interactions with light targets however requires different techniques. This talk will discuss new experimental developments that has enabled the understanding of breakup dynamics of 7Li following interactions with 2H, 27Al and 58Ni. It has been found that breakup is almost exclusively triggered by nucleon transfer between the colliding partners, to a larger extent than was found for heavier targets. Together with these experiments, developments of the classical trajectory model PLATYPUS has produced a more nuanced picture of the effects that breakup can have on complete fusion. The findings of these experiments, as well as progress towards extensions to astrophysically relevant reactions, such as d + 7Be will be presented.

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