| Autor: |
Parr, E., Smith, J. F., Greenlees, Paul, Smolen, M., Papadakis, Philippos, Auranen, Kalle, Chapman, R., Cullen, D. M., Grahn, Tuomas, Grocutt, L., Herzan, Andrej, Herzberg, R.-D., Hodge, D., Jakobsson, Ulrika, Julin, Rauno, Juutinen, Sakari, Konki, Joonas, Leino, Matti, McPeake, C., Mengoni, D., Mistry, A. K., Mulholland, K. F., O'Neill, G. G., Pakarinen, Janne, Partanen, Jari, Peura, Pauli, Rahkila, Panu, Ruotsalainen, Panu, Sandzelius, Mikael, Sarén, Jan, Scheck, M., Scholey, Catherine, Sorri, Juha, Stolze, Sanna, Taylor, M. J., Uusitalo, Juha |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| Předmět: |
|
| Popis: |
The α decay of 222Th populating the low-lying J π = 3− state, and also a proposed 1− state, in 218Ra has been observed. The observations suggest an excitation energy of 853 keV for the 1− state, which is 60 keV above the 3− state. The hindrance factors of these α decays give a possible boundary to the region of ground-state octupole deformation in the light-actinide nuclei. The relative positions of the J π = 1− and 3− states suggest they are produced by an octupole-vibrational mechanism, as opposed to α clustering or rotations of a reflection-asymmetric octupole-deformed shape. peerReviewed |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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