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Electromagnetic moments of the beta-emitting nucleus 16N
K Matsuta1, T Miyake, K Minamisono
1Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan.
Physical Review Letters
|May 1, 2001
Abstract:
The nuclear magnetic dipole moment mu and electric quadrupole moment Q of the beta-emitting 16N(Ipi = 2(-), T(1/2) = 7.13 s) nucleus have been determined for the first time by detecting its beta-NMR in a MgO crystal and beta-NQR (nuclear quadrupole resonance) in a TiO (2) crystal to be /mu/ = (1.9859+/-0.0011) mu(N) and /Q/ = (17.9+/-1.7) mb, respectively. Although the prediction of mu given by the Hartree-Fock calculation agrees well with the experiment, an abnormally small effective charge for neutrons is required to account for the experimental Q.