Recoil-α-fission and recoil-α-α-fission events observed in the reaction 48Ca + 243Am

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

Abstract

Products of the fusion-evaporation reaction 48Ca + 243Am were studied with the TASISpec set-up at the gas-filled separator TASCA at the GSI Helmholtzzentrum für Schwerionenforschung, Darmstadt, Germany. Amongst the detected thirty correlated α-decay chains associated with the production of element Z=115, two recoil-α-fission and five recoil-α-α-fission events were observed. The latter five chains are similar to four such events reported from experiments performed at the Dubna gas-filled separator, and three such events reported from an experiment at the Berkeley gas-filled separator. The four chains observed at the Dubna gas-filled separator were assigned to start from the 2n-evaporation channel 289115 due to the fact that these recoil-α-α-fission events were observed only at low excitation energies. Contrary to this interpretation, we suggest that some of these recoil-α-α-fission decay chains, as well as some of the recoil-α-α-fission and recoil-α-fission decay chains reported from Berkeley and in this article, start from the 3n-evaporation channel 288115.

Detaljer

Författare
  • L. L. Andersson
  • A. Di Nitto
  • Ch E. Düllmann
  • J. M. Gates
  • K. E. Gregorich
  • C. J. Gross
  • R. D. Herzberg
  • F. P. Heßberger
  • J. Khuyagbaatar
  • J. V. Kratz
  • K. Rykaczewski
  • M. Schädel
  • A. Yakushev
  • D. Ackermann
  • M. Block
  • H. Brand
  • D. Cox
  • X. Derkx
  • J. Dobaczewski
  • K. Eberhardt
  • J. Even
  • J. Gerl
  • E. Jäger
  • B. Kindler
  • J. Krier
  • I. Kojouharov
  • N. Kurz
  • B. Lommel
  • A. Mistry
  • C. Mokry
  • W. Nazarewicz
  • H. Nitsche
  • J. P. Omtvedt
  • P. Papadakis
  • J. Runke
  • H. Schaffner
  • B. Schausten
  • Yue Shi
  • P. Thörle-Pospiech
  • T. Torres
  • T. Traut
  • N. Trautmann
  • A. Türler
  • A. Ward
  • D. E. Ward
  • N. Wiehl
Enheter & grupper
Externa organisationer
  • Helmholtz Institute Mainz
  • University of Mainz
  • GSI Helmholtz Centre for Heavy Ion Research
  • Lawrence Berkeley National Laboratory
  • Oak Ridge National Laboratory
  • University of Liverpool
  • Japan Atomic Energy Agency
  • University of York
  • University of Groningen
  • Michigan State University
  • University of Oslo
  • University of Jyväskylä
  • Paul Scherrer Institute
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Subatomär fysik
  • Naturvetenskap

Nyckelord

Originalspråkengelska
Sidor (från-till)117-138
Antal sidor22
TidskriftNuclear Physics, Section A
Volym953
Tidigt onlinedatum2016 maj
StatusPublished - 2016 sep 1
PublikationskategoriForskning
Peer review utfördJa

Relaterad forskningsoutput

Ulrika Forsberg, Claes Fahlander & Dirk Rudolph, 2016 dec 1, Nobel Symposium NS 160 – Chemistry and Physics of Heavy and Superheavy Elements: EPJ Web of Conferences. Rudolph, D. (red.). EDP Sciences, Vol. 131. 7 s. 02003

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceeding

Dirk Rudolph (red.), 2016 dec 1, EDP Sciences. 310 s.

Forskningsoutput: Bok/rapportKonferensproceeding (redaktör)

Gates, J. M., Gregorich, K. E., Gothe, O. R., Uribe, E. C., Pang, G. K., Bleuel, D. L., Block, M., Clark, R. M., Campbell, C. M., Crawford, H. L., Cromaz, M., Di Nitto, A., Düllmann, C. E., Esker, N. E., Fahlander, C., Fallon, P., Farjadi, R. M., Forsberg, U., Khuyagbaatar, J., Loveland, W. & 13 andraMacchiavelli, A. O., May, E. M., Mudder, P. R., Olive, D. T., Rice, A. C., Rissanen, J., Dirk Rudolph, Luis Sarmiento, Shusterman, J. A., Stoyer, M. A., Wiens, A., Yakushev, A. & Nitsche, H., 2015, I : Physical Review C (Nuclear Physics). 92, 2, 6 s., 021301.

Forskningsoutput: TidskriftsbidragArtikel i vetenskaplig tidskrift

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Related projects

Ulrika Forsberg, Dirk Rudolph, Pavel Golubev & Claes Fahlander

2011/01/012016/05/31

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