Photoexcitation of the 7.64-MeV Magnetic Dipole Levels inCd112andNi62by Iron Capture Gamma Rays
1970; American Institute of Physics; Volume: 1; Issue: 1 Linguagem: Inglês
10.1103/physrevc.1.201
ISSN1538-4497
Autores Tópico(s)Nuclear physics research studies
ResumoThe elastic and inelastic scattering of iron capture $\ensuremath{\gamma}$ rays from the 7.64-MeV $M1$ levels in ${\mathrm{Cd}}^{112}$ and ${\mathrm{Ni}}^{62}$ were studied with a Ge(Li) spectrometer. Eleven energy levels in ${\mathrm{Cd}}^{112}$ and three in ${\mathrm{Ni}}^{62}$ observed in this experiment are compared with the levels excited in ($d, p$) experiments. Angular distribution measurements were made for four strong transitions in ${\mathrm{Cd}}^{112}$ and two in ${\mathrm{Ni}}^{62}$, giving the following spin assignments: ${\mathrm{Cd}}^{112}$: 0.62-MeV level (2), 1.23-MeV (0), 1.88-MeV (0), 7.64-MeV (1); ${\mathrm{Ni}}^{62}$: 2.06-MeV (0), 7.64-MeV (1). In both nuclei, only the ${0}^{+}$ member of the two-quadrupole phonon triplet (${0}^{+}$, ${2}^{+}$, ${4}^{+}$) is strongly excited in this experiment, indicating very different components in the wave functions of the ${0}^{+}$ and ${2}^{+}$ members.
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