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48Ca+249Bk Fusion Reaction Leading to Element Z=117: Long-Lived α-Decaying 270Db and Discovery of 266Lr
- Khuyagbaatar, J. (author)
- Yakushev, A. (author)
- Düllmann, Ch. E. (author)
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- Ackermann, D. (author)
- Andersson, L.-L. (author)
- Asai, M. (author)
- Block, M. (author)
- Boll, R. A. (author)
- Brand, H. (author)
- Cox, D. M. (author)
- Dasgupta, M. (author)
- Derkx, X. (author)
- Di Nitto, A. (author)
- Eberhardt, K. (author)
- Even, J. (author)
- Evers, M. (author)
- Gates, J. M. (author)
- Gharibyan, N. (author)
- Gregorich, K. E. (author)
- Hamilton, J. H. (author)
- Hartmann, W. (author)
- Herzberg, R.-D. (author)
- Heßberger, F. P. (author)
- Hinde, D. J. (author)
- Hoffmann, J. (author)
- Hollinger, R. (author)
- Hübner, A. (author)
- Jäger, E. (author)
- Kindler, B. (author)
- Kratz, J. V. (author)
- Krier, J. (author)
- Kurz, N. (author)
- Laatiaoui, M. (author)
- Lahiri, S. (author)
- Lang, R. (author)
- Lommel, B. (author)
- Maiti, M. (author)
- Miernik, K. (author)
- Minami, S. (author)
- Mistry, A. (author)
- Mokry, C. (author)
- Nitsche, H. (author)
- Omtvedt, J. P. (author)
- Pang, G. K. (author)
- Papadakis, P. (author)
- Renisch, D. (author)
- Roberto, J. (author)
- Runke, J. (author)
- Rykaczewski, K. P. (author)
- Schädel, M. (author)
- Schausten, B. (author)
- Semchenkov, A. (author)
- Shaughnessy, D. A. (author)
- Steinegger, P. (author)
- Steiner, J. (author)
- Tereshatov, E. E. (author)
- Thörle-Pospiech, P. (author)
- Tinschert, K. (author)
- Torres De Heidenreich, T. (author)
- Trautmann, N. (author)
- Türler, A. (author)
- Uusitalo, J. (author)
- Ward, D. E. (author)
- Wegrzecki, M. (author)
- Wiehl, N. (author)
- Van Cleve, S. M. (author)
- Yakusheva, V. (author)
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- (creator_code:org_t)
- 2014
- 2014
- English 4 s.
- In: Physical Review Letters. - 1079-7114. ; 112:17
- Journal article (peer-reviewed)
Abstract
Subject headings
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- The superheavy element with atomic number Z=117 was produced as an evaporation residue in the 48Ca+249Bk fusion reaction at the gas-filled recoil separator TASCA at GSI Darmstadt, Germany. The radioactive decay of evaporation residues and their α-decay products was studied using a detection setup that allowed measuring decays of single atomic nuclei with half-lives between sub-μs and a few days. Two decay chains comprising seven α decays and a spontaneous fission each were identified and are assigned to the isotope 294-117 and its decay products. A hitherto unknown α-decay branch in 270Db (Z=105) was observed, which populated the new isotope 266Lr (Z=103). The identification of the long-lived (T1/2=1.0+1.9−0.4 h) α-emitter 270Db marks an important step towards the observation of even more long-lived nuclei of superheavy elements located on an “island of stability.”
Subject headings
- NATURVETENSKAP -- Fysik -- Subatomär fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Subatomic Physics (hsv//eng)
Keyword
- superheavy elements
- element 117
- alpha-decay
Publication and Content Type
- art (subject category)
- ref (subject category)
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- Physical Review Letters (Search for host publication in LIBRIS)
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- By the author/editor
- Khuyagbaatar, J.
- Yakushev, A.
- Düllmann, Ch. E.
- Ackermann, D.
- Andersson, L.-L.
- Asai, M.
- show more...
- Block, M.
- Boll, R. A.
- Brand, H.
- Cox, D. M.
- Dasgupta, M.
- Derkx, X.
- Di Nitto, A.
- Eberhardt, K.
- Even, J.
- Evers, M.
- Fahlander, Claes
- Forsberg, Ulrika
- Gates, J. M.
- Gharibyan, N.
- Golubev, Pavel
- Gregorich, K. E.
- Hamilton, J. H.
- Hartmann, W.
- Herzberg, R.-D.
- Heßberger, F. P.
- Hinde, D. J.
- Hoffmann, J.
- Hollinger, R.
- Hübner, A.
- Jäger, E.
- Kindler, B.
- Kratz, J. V.
- Krier, J.
- Kurz, N.
- Laatiaoui, M.
- Lahiri, S.
- Lang, R.
- Lommel, B.
- Maiti, M.
- Miernik, K.
- Minami, S.
- Mistry, A.
- Mokry, C.
- Nitsche, H.
- Omtvedt, J. P.
- Pang, G. K.
- Papadakis, P.
- Renisch, D.
- Roberto, J.
- Rudolph, Dirk
- Runke, J.
- Rykaczewski, K. ...
- Sarmiento, Luis
- Schädel, M.
- Schausten, B.
- Semchenkov, A.
- Shaughnessy, D. ...
- Steinegger, P.
- Steiner, J.
- Tereshatov, E. E ...
- Thörle-Pospiech, ...
- Tinschert, K.
- Torres De Heiden ...
- Trautmann, N.
- Türler, A.
- Uusitalo, J.
- Ward, D. E.
- Wegrzecki, M.
- Wiehl, N.
- Van Cleve, S. M.
- Yakusheva, V.
- show less...
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Subatomic Physic ...
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- Physical Review ...
- By the university
- Lund University
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