Spin exchange polarization and measurement of the hyperfine splitting of short-lived8Li |
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Authors: | Rainer Neugart |
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Institution: | 1. I. Physikalisches Institut der Universit?t Heidelberg, Deutschland
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Abstract: | Free8Li (T 1/2=0.84 sec) atoms were polarized by spin exchange with optically pumped rubidium vapour. The8Li nuclei were produced by the reaction7Li(d, p)8Li in a thin LiF target. They recoiled into helium which was used as a buffer gas for optical pumping as well. Nuclear polarization up to 2% was detected by β-decay asymmetry. Rf transitions between hfs levels of the atomic ground state yielded the hfs separation ΔW=382.543(7) MHz. The nuclear spin assignmentI=2 was confirmed. |
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