Enhanced mixing of intrinsic states in deformed Hf nuclei
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McCutchan, EA, Casten, RF, Werner, V, Williams, E, Winkler, R, Wolf, A, Berant, Z, Gurdal, G, Qian, J, Ai, H, Amon, L, Beausang, CW, Brenner, DS, Cakirli, RB, Casperson, RJ, Fitzpatrick, CR, Frank, D, Garnsworthy, AB, Heinz, A, Luettke, R, Mertz, AF, Oktem, Y, Pietralla, N, Regan, PH, Shoraka, B, Terry, JR and Thompson, NJ (2008) Enhanced mixing of intrinsic states in deformed Hf nuclei PHYSICAL REVIEW C, 77 (5). ? - ?. ISSN 0556-2813
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Abstract
Excited low-spin, nonyrast states in Hf-170,Hf-172,Hf-174 were populated in beta(+)/epsilon decay and studied through off-beam, gamma-ray spectroscopy. New coincidence data allowed for a substantial revision of the level schemes Hf-170,Hf-174 and a confirmation of the level scheme of Hf-174. The Hf isotopes represent a unique situation in which a crossing of collective intrinsic excitations occurs, enhancing significantly the effects of mixing. Using branching ratios from excited 2(+) states, this mixing is followed and studied. The resulting mixing matrix elements are found to be similar to 30 keV-an order of magnitude larger than estimated previously for nearby nuclei. In the case of Hf-170, the 2(beta)(+) and 2(gamma)(+) level are shown to be completely mixed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Science & Technology, Physical Sciences, Physics, Nuclear, Physics, TUNGSTEN NUCLEI, DECAY, TA-174, BETA, HF-174 |
| Divisions: | Faculty of Engineering and Physical Sciences > Physics |
| ID Code: | 251 |
| Deposited By: | Mr Adam Field |
| Deposited On: | 27 May 2010 15:07 |
| Last Modified: | 08 Jun 2013 15:14 |
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