We studied the magnetic dipole moments $\mu$ of even-odd C isotopes, ranging from proton-rich to neutron-rich nuclei, with antisymmetrized molecular dynamics (AMD). The results are in good agreement with the experimental data. In the ${}_{}{}^9{}_{}{}^{}\mathrm{C}$ ground state the total intrinsic spin of the protons is found to be nonzero ($S_p\ne 0$), which is unusual in even-odd nuclei. The interesting point is that the spin-orbit force breaks slightly the coupling off of intrinsic spins of the even nucleon group in isospin $T=\frac{3}{2}$ nuclei. This result is consistent with the newly measured $\mu$ data that, when combined with ${}_{}{}^9{}_{}{}^{}\mathrm{Li}$ data, indicate an unusual $〈\sigma 〉$ value larger than unity. A $\mu$ moment $-1.05\mathrm{}{\mu }_N$ of ${}_{}{}^{17}{}_{}{}^{}\mathrm{C}$ is theoretically predicted. We also show a good reproduction of $E2\mathrm{}$ transition data.

• Received 22 November 1995

DOI:https://doi.org/10.1103/PhysRevC.54.R468