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Identification of the J(pi)=1(-) state in Ra-218 populated via alpha decay of Th-222
- Parr, E. (author)
- Smith, J. F. (author)
- Greenlees, P. T. (author)
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- Smolen, M. (author)
- Papadakis, P. (author)
- Auranen, K. (author)
- Chapman, R. (author)
- Cullen, D. M. (author)
- Grahn, T. (author)
- Grocutt, L. (author)
- Herzan, A. (author)
- Herzberg, R. -D (author)
- Hodge, D. (author)
- Julin, R. (author)
- Juutinen, S. (author)
- Konki, J. (author)
- Leino, M. (author)
- McPeake, C. (author)
- Mengoni, D. (author)
- Mistry, A. K. (author)
- Mulholland, K. F. (author)
- O'Neill, G. G. (author)
- Pakarinen, J. (author)
- Partanen, J. (author)
- Peura, P. (author)
- Rahkila, P. (author)
- Ruotsalainen, P. (author)
- Sandzelius, M. (author)
- Saren, J. (author)
- Scheck, M. (author)
- Scholey, C. (author)
- Sorri, J. (author)
- Stolze, S. (author)
- Taylor, M. J. (author)
- Uusitalo, J. (author)
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- (creator_code:org_t)
- 2016
- 2016
- English.
- In: PHYSICAL REVIEW C. - 2469-9985. ; 94:1
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The alpha decay of Th-222 populating the low-lying J(pi) = 3(-) state, and also a proposed 1(-) state, in Ra-218 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 alpha decays give a possible boundary to the region of ground-state octupole deformation in the light-actinide nuclei. The relative positions of the J(pi) = 1(-) and 3(-) states suggest they are produced by an octupole-vibrational mechanism, as opposed to alpha clustering or rotations of a reflection-asymmetric octupole-deformed shape.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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- ref (subject category)
- art (subject category)
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- By the author/editor
- Parr, E.
- Smith, J. F.
- Greenlees, P. T.
- Smolen, M.
- Papadakis, P.
- Auranen, K.
- show more...
- Chapman, R.
- Cullen, D. M.
- Grahn, T.
- Grocutt, L.
- Herzan, A.
- Herzberg, R. -D
- Hodge, D.
- Jakobsson, Ulrik ...
- Julin, R.
- Juutinen, S.
- Konki, J.
- Leino, M.
- McPeake, C.
- Mengoni, D.
- Mistry, A. K.
- Mulholland, K. F ...
- O'Neill, G. G.
- Pakarinen, J.
- Partanen, J.
- Peura, P.
- Rahkila, P.
- Ruotsalainen, P.
- Sandzelius, M.
- Saren, J.
- Scheck, M.
- Scholey, C.
- Sorri, J.
- Stolze, S.
- Taylor, M. J.
- Uusitalo, J.
- show less...
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- NATURAL SCIENCES
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- Royal Institute of Technology
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