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First Superheavy Element Experiments at the GSI Recoil Separator TASCA: The Production and Decay of Element 114 in the 244Pu(48Ca,3-4n) Reaction

Gates, J. M. (author)
Duellmann, Ch E. (author)
Schaedel, M. (author)
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Yakushev, A. (author)
Tuerler, A. (author)
Eberhardt, K. (author)
Kratz, J. V. (author)
Ackermann, D. (author)
Andersson, L. -L. (author)
Block, M. (author)
Bruechle, W. (author)
Dvorak, J. (author)
Essel, H. G. (author)
Ellison, P. A. (author)
Even, J. (author)
Forsberg, Ulrika (author)
Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
Gellanki, Jnaneswari (author)
Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
Gorshkov, A. (author)
Graeger, R. (author)
Gregorich, K. E. (author)
Hartmann, W. (author)
Herzberg, R. -D. (author)
Hessberger, F. P. (author)
Hild, D. (author)
Huebner, A. (author)
Jaeger, E. (author)
Khuyagbaatar, J. (author)
Kindler, B. (author)
Krier, J. (author)
Kurz, N. (author)
Lahiri, S. (author)
Liebe, D. (author)
Lommel, B. (author)
Maiti, M. (author)
Nitsche, H. (author)
Omtvedt, J. P. (author)
Parr, E. (author)
Rudolph, Dirk (author)
Lund University,Lunds universitet,Kärnfysik,Fysiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Nuclear physics,Department of Physics,Departments at LTH,Faculty of Engineering, LTH
Runke, J. (author)
Schaffner, H. (author)
Schausten, B. (author)
Schimpf, E. (author)
Semchenkov, A. (author)
Steiner, J. (author)
Thoerle-Pospiech, P. (author)
Uusitalo, J. (author)
Wegrzecki, M. (author)
Wiehl, N. (author)
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 (creator_code:org_t)
2011
2011
English.
In: Physical Review C (Nuclear Physics). - 0556-2813. ; 83:5
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • Experiments with the new recoil separator, Transactinide Separator and Chemistry Apparatus (TASCA), at the GSI were performed by using beams of Ca-48 to irradiate targets of Pb206-208, which led to the production of No252-254 isotopes. These studies allowed for evaluation of the performance of TASCA when coupled to a new detector and electronics system. By following these studies, the isotopes of element 114 ((288-291)114) were produced in irradiations of Pu-244 targets with Ca-48 beams at compound nucleus excitation energies around 41.7 and 37.5 MeV, demonstrating TASCA's ability to perform experiments with picobarn-level cross sections. A total of 15 decay chains were observed and were assigned to the decay of 288-291114. A new a-decay branch in (281)Ds was observed, leading to the new nucleus (277)Hs.

Subject headings

NATURVETENSKAP  -- Fysik -- Subatomär fysik (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Subatomic Physics (hsv//eng)

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art (subject category)
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