Limits on tensor currents from $^{8}$Li $\beta$ decay
COFFEE_KLATCH · Invited
Abstract
Precision measurements of angular correlations from nuclear $\beta$ decay provide information on possible exotic couplings in the weak interaction. In the $\beta$ decay of $^{8}$Li, the delayed-$\alpha$ breakup of the $^{8}$Be$^{*}$ daughter provides enhanced sensitivity to possible tensor couplings. We report a limit on the ratio of the tensor to axial-vector coupling from the $^{8}$Li $\beta-\alpha-\nu$ correlation experiment performed using the $\beta$-decay Paul Trap (BPT) at Argonne National Laboratory. We will discuss our continued work on angular correlation measurements as well as new techniques being developed to overcome current experimental limitations.
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Authors
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Nicholas Scielzo
Lawrence Livermore National Laboratory