Abstract
Given the astrophysical interest of 7Be(p, γ)8B, there have been several experiments applying the Coulomb dissociation method for extracting the capture rate. Measurements at Michigan State are dominated by E1 contributions but have a small E2 component. On the other hand, a lower energy measurement at Notre Dame has a much stronger E2 contribution. The expectation was that the two measurements would tie down the E2 and thus allow for an accurate extraction of the E1 relevant for the capture process. The aim of this paper is to show that the E2 factor in breakup reactions does not translate into a scaling of the E2 contribution in the corresponding capture reaction. We show that changes to the 8B single particle parameters, which are directly related to the E2 component in the capture reaction, do not affect the corresponding breakup reactions, using the present reaction theory.
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