Excited State of Be9 from the B11(d,α)Be9* Reaction

Abstract
The alpha-particles from boron bombarded by 1.51-Mev deuterons have been investigated with a magnetic spectrometer. Two groups of alpha-particles have been assigned to the reaction B11(d,α)Be9 with Q-values of 8.018±0.007 and 5.596±0.006 Mev, indicating a virtual state of Be9 at 2.422±0.005 Mev. The previously unreported alpha-particle group corresponding to this excited state had a natural half-width of less than 7 kev. No additional alpha-groups corresponding to excited states of Be9 were observed for excitations of Be9 from 0 to 5.0 Mev.

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