Journalartikel

Jahr der Veröffentlichung: 1994

Seiten: 266-280

Zeitschrift: Nuclear Physics A: Nuclear and Hadronic Physics

Bandnummer: 567

Heftnummer: 2

ISSN: 0375-9474

eISSN: 1873-1554

DOI Link: https://doi.org/10.1016/0375-9474(94)90148-1

Verlag: Elsevier

Abstract: 
Measurements of the linear polarization of resonantly scattered photons have been used for model-independent parity determinations in nuclear resonance fluorescence experiments. The experiments have been performed at the bremsstrahlung facility of the Stuttgart Dynamitron accelerator. The use of two different Compton polarimeters, a five Ge-detector arrangement and a sectored single-crystal Ge-polarimeter enabled the parity assignments. Positive parities were established for a cluster of states near 3.3 MeV (M1 transitions) to be ascribed to the so-called scissors mode. In addition an enhanced electric dipole excitation near 2.5 MeV (2471 keV, B(E1)up arrow = 3.0+/-0.4 x 10(-3) e(2)fm(2)) has been observed as in the neighbouring isotopes Dy-162 and Nd-150. These 1(-) states systematically exhibit an uncommon decay branching hinting at K-mixing.

Harvard-Zitierstil: FRIEDRICHS, H., HAGER, D., VONBRENTANO, P., HEIL, R., HERZBERG, R., KNEISSL, U., et al. (1994) LOW-LYING E1 AND M1 STRENGTHS IN THE DEFORMED NUCLEUS GD-160, Nuclear Physics A: Nuclear and Hadronic Physics, 567(2), pp. 266-280. https://doi.org/10.1016/0375-9474(94)90148-1

APA-Zitierstil: FRIEDRICHS, H., HAGER, D., VONBRENTANO, P., HEIL, R., HERZBERG, R., KNEISSL, U., MARGRAF, J., MULLER, G., PITZ, H., SCHLITT, B., SCHUMACHER, M., WESSELBORG, C., & ZILGES, A. (1994). LOW-LYING E1 AND M1 STRENGTHS IN THE DEFORMED NUCLEUS GD-160. Nuclear Physics A: Nuclear and Hadronic Physics. 567(2), 266-280. https://doi.org/10.1016/0375-9474(94)90148-1