TY - JOUR
T1 - Dipole excitations in the transitional nucleus [Formula Presented]Nd studied in photon scattering experiments
AU - Eckert, T.
AU - Beck, O.
AU - Besserer, J.
AU - von Brentano, P.
AU - Fischer, R.
AU - Herzberg, R. D.
AU - Kneissl, U.
AU - Margraf, J.
AU - Maser, H.
AU - Nord, A.
AU - Pietralla, N.
AU - Pitz, H. H.
AU - Yates, S. W.
AU - Zilges, A.
PY - 1997
Y1 - 1997
N2 - Low-lying electric and magnetic dipole excitations in the transitional nucleus [Formula Presented]Nd have been studied in nuclear resonance fluorescence experiments performed with a bremsstrahlung beam (end point energy 4.1 MeV). The use of high-resolution [Formula Presented]-ray spectrometers and a sectored single-crystal Compton polarimeter provided detailed information on excitation energies, spins, parities, decay widths, transition probabilities, and branching ratios of numerous new spin-1 states in [Formula Presented]Nd. The strong [Formula Presented]1 excitation at 2185 keV in this [Formula Presented] = 84 nucleus is interpreted as the quadrupole-octupole coupled two-phonon excitation which has been observed systematically in the neighboring [Formula Presented] = 82 isotones. The decay properties of this 1[Formula Presented] state are compared with the systematics of the low-lying 1[Formula Presented] levels in the other even-even, stable Nd isotopes. The [Formula Presented]1 excitations in [Formula Presented]Nd are discussed with respect to the deformation dependence of the orbital [Formula Presented]1 “scissors mode”, the so-called “[Formula Presented] law”, which has been studied previously in the other stable even-even Nd nuclei and in the Sm isotopes.
AB - Low-lying electric and magnetic dipole excitations in the transitional nucleus [Formula Presented]Nd have been studied in nuclear resonance fluorescence experiments performed with a bremsstrahlung beam (end point energy 4.1 MeV). The use of high-resolution [Formula Presented]-ray spectrometers and a sectored single-crystal Compton polarimeter provided detailed information on excitation energies, spins, parities, decay widths, transition probabilities, and branching ratios of numerous new spin-1 states in [Formula Presented]Nd. The strong [Formula Presented]1 excitation at 2185 keV in this [Formula Presented] = 84 nucleus is interpreted as the quadrupole-octupole coupled two-phonon excitation which has been observed systematically in the neighboring [Formula Presented] = 82 isotones. The decay properties of this 1[Formula Presented] state are compared with the systematics of the low-lying 1[Formula Presented] levels in the other even-even, stable Nd isotopes. The [Formula Presented]1 excitations in [Formula Presented]Nd are discussed with respect to the deformation dependence of the orbital [Formula Presented]1 “scissors mode”, the so-called “[Formula Presented] law”, which has been studied previously in the other stable even-even Nd nuclei and in the Sm isotopes.
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U2 - 10.1103/PhysRevC.56.1256
DO - 10.1103/PhysRevC.56.1256
M3 - Article
AN - SCOPUS:0031487544
SN - 0556-2813
VL - 56
SP - 1256
EP - 1265
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
IS - 3
ER -