Abstract
The sign of the quadrupole coupling constant eqQ of 8B in ZrB2 is determined to be positive through the β-delayed α-ray anisotropy measurement combined with the spin manipulation technique by use of the β-NMR. According to the theoretical calculation of the electric field gradient in ZrB2, the sign of the quadrupole moment of 8B is deduced to be positive.
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Yamaguchi, T., Sato, K., Ha, C. et al. Sign of the quadrupole moment of proton drip-line nucleus 8B. Hyperfine Interactions 120, 689–694 (1999). https://doi.org/10.1023/A:1017092127426
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DOI: https://doi.org/10.1023/A:1017092127426