Two-Phonon Octupole Excitation in 146Gd

Journal Article · Mon Nov 21 00:00:00 EST 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2140669· OSTI ID:20719735

Caballero, L; Rubio, B; Algora, A; Nacher, E ^[1]; Kleinheinz, P ^[2]; Dewald, A; Fitzler, A; Jolie, J; Linnemann, A; Moeller, O ^[3]; Gadea, A ^[4]; Julin, R; Piiparinen, M ^[5]; Lunardi, S; Menegazzo, R ^[6]; Yates, S W ^[7]

---

1. Instituto de Fisica Corpuscular, CSIC-Univ. de Valencia, E-46071 Valencia (Spain)
2. Institut fuer Kernphysik, Forschungszentrum Juelich, D-52425 Juelich (Germany)
3. Institut fuer Kernphysik, University of Cologne, Cologne (Germany)
4. Laboratori Nazionali di Legnaro, INFN, Legnaro (Italy)
5. Department of Physics, University of Jyvaeskylae, FIN-40014 Jyvaeskylae (Finland)
6. Dipartimento di Fisica, Sezione di Padova, Padova (Italy)
7. Department of Chemistry, Univ. of Kentucky, Lexington, KY 40506-0055 (United States)

The excited states in 146Gd have been re-investigated with the 144Sm({alpha},2n) reaction using a modern Ge {gamma}-ray array including a polarimeter. Amongst the non-yrast states populated in this reaction we have identified the aligned 6+ member of the two-phonon octupole quartet from the observation of the E3 branching to the one phonon 3- state. Our results represent the first observation of a 6+{yields}3-{yields}0+ E3 cascade in an even-even nucleus.

• OSTI ID: 20719735
• Journal Information: AIP Conference Proceedings, Vol. 802, Issue 1; Conference: ENS'05: International symposium on exotic nuclear systems, Debrecen (Hungary), 20-25 Jun 2005; Other Information: DOI: 10.1063/1.2140669; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA REACTIONS
BRANCHING RATIO
EXCITATION
EXCITED STATES
GADOLINIUM 146
GAMMA RADIATION
NEUTRONS
OCTUPOLES
PHONONS
POLARIMETERS
S STATES
SAMARIUM 144 TARGET
SHELL MODELS
YRAST STATES