Journalartikel

Jahr der Veröffentlichung: 1996

Seiten: 2749-2762

Zeitschrift: Physical Review C

Bandnummer: 53

Heftnummer: 6

ISSN: 2469-9985

eISSN: 2469-9993

DOI Link: https://doi.org/10.1103/PhysRevC.53.2749

Verlag: American Physical Society

Abstract: 
Photon scattering experiments on the deformed even-even nuclei Er-164,Er-166,Er-168,Er-170 provided detailed information on the excitation energies, spins, transition probabilities, and K quantum numbers of low-lying dipole excitations. In the case of Er-168, in addition, parities of the excited states were determined model independently by measuring the linear polarization of the scattered photons using a sectored Ge-Compton polarimeter with a BGO-anti-Compton shield. The results for M1 excitations are compared with the systematics of low-lying orbital M1 strength (''scissors mode'') in the neighboring rare-earth nuclei. The observed enhanced El transitions are discussed in terms of collective excitations (K=0 octupole bandheads or candidates for 2(+)x3(-) two-phonon excitations) and in the framework of recent microscopic quasiparticle phonon model calculations.

Harvard-Zitierstil: Maser, H., Lindenstruth, S., Bauske, I., Beck, O., vonBrentano, P., Eckert, T., et al. (1996) Systematics of low-lying dipole excitations in the deformed even-even nuclei Er-164,Er-166,Er-168,Er-170, Physical Review C (nuclear physics), 53(6), pp. 2749-2762. https://doi.org/10.1103/PhysRevC.53.2749

APA-Zitierstil: Maser, H., Lindenstruth, S., Bauske, I., Beck, O., vonBrentano, P., Eckert, T., Friedrichs, H., Heil, R., Herzberg, R., Jung, A., Kneissl, U., Margraf, J., Pietralla, N., Pitz, H., Wesselborg, C., & Zilges, A. (1996). Systematics of low-lying dipole excitations in the deformed even-even nuclei Er-164,Er-166,Er-168,Er-170. Physical Review C (nuclear physics). 53(6), 2749-2762. https://doi.org/10.1103/PhysRevC.53.2749