Physics Letters B (Sep 2018)
Study of non-fusion products in the Ti50+Cf249 reaction
- A. Di Nitto,
- J. Khuyagbaatar,
- D. Ackermann,
- L.-L. Andersson,
- E. Badura,
- M. Block,
- H. Brand,
- I. Conrad,
- D.M. Cox,
- Ch.E. Düllmann,
- J. Dvorak,
- K. Eberhardt,
- P.A. Ellison,
- N.E. Esker,
- J. Even,
- C. Fahlander,
- U. Forsberg,
- J.M. Gates,
- P. Golubev,
- O. Gothe,
- K.E. Gregorich,
- W. Hartmann,
- R.D. Herzberg,
- F.P. Heßberger,
- J. Hoffmann,
- R. Hollinger,
- A. Hübner,
- E. Jäger,
- B. Kindler,
- S. Klein,
- I. Kojouharov,
- J.V. Kratz,
- J. Krier,
- N. Kurz,
- S. Lahiri,
- B. Lommel,
- M. Maiti,
- R. Mändl,
- E. Merchán,
- S. Minami,
- A.K. Mistry,
- C. Mokry,
- H. Nitsche,
- J.P. Omtvedt,
- G.K. Pang,
- D. Renisch,
- D. Rudolph,
- J. Runke,
- L.G. Sarmiento,
- M. Schädel,
- H. Schaffner,
- B. Schausten,
- A. Semchenkov,
- J. Steiner,
- P. Thörle-Pospiech,
- N. Trautmann,
- A. Türler,
- J. Uusitalo,
- D. Ward,
- M. Wegrzecki,
- P. Wieczorek,
- N. Wiehl,
- A. Yakushev,
- V. Yakusheva
Affiliations
- A. Di Nitto
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- J. Khuyagbaatar
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany; Helmholtz Institute Mainz, 55099 Mainz, Germany; Corresponding author at: GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany.
- D. Ackermann
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- L.-L. Andersson
- Helmholtz Institute Mainz, 55099 Mainz, Germany; University of Liverpool, Liverpool, L69 7ZE, UK
- E. Badura
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- M. Block
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany; Helmholtz Institute Mainz, 55099 Mainz, Germany
- H. Brand
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- I. Conrad
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- D.M. Cox
- University of Liverpool, Liverpool, L69 7ZE, UK
- Ch.E. Düllmann
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany; GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany; Helmholtz Institute Mainz, 55099 Mainz, Germany
- J. Dvorak
- Helmholtz Institute Mainz, 55099 Mainz, Germany
- K. Eberhardt
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany; Helmholtz Institute Mainz, 55099 Mainz, Germany
- P.A. Ellison
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8169, USA; University of California, Berkeley, CA 94720-1460, USA
- N.E. Esker
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8169, USA; University of California, Berkeley, CA 94720-1460, USA
- J. Even
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany; Helmholtz Institute Mainz, 55099 Mainz, Germany
- C. Fahlander
- Lund University, 22100 Lund, Sweden
- U. Forsberg
- Lund University, 22100 Lund, Sweden
- J.M. Gates
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8169, USA
- P. Golubev
- Lund University, 22100 Lund, Sweden
- O. Gothe
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8169, USA; University of California, Berkeley, CA 94720-1460, USA
- K.E. Gregorich
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8169, USA
- W. Hartmann
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- R.D. Herzberg
- University of Liverpool, Liverpool, L69 7ZE, UK
- F.P. Heßberger
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany; Helmholtz Institute Mainz, 55099 Mainz, Germany
- J. Hoffmann
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- R. Hollinger
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- A. Hübner
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- E. Jäger
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- B. Kindler
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- S. Klein
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany
- I. Kojouharov
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- J.V. Kratz
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany
- J. Krier
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- N. Kurz
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- S. Lahiri
- Saha Institute of Nuclear Physics, Kolkata-700064, India
- B. Lommel
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- M. Maiti
- Saha Institute of Nuclear Physics, Kolkata-700064, India
- R. Mändl
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- E. Merchán
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- S. Minami
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- A.K. Mistry
- University of Liverpool, Liverpool, L69 7ZE, UK
- C. Mokry
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany; Helmholtz Institute Mainz, 55099 Mainz, Germany
- H. Nitsche
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8169, USA; University of California, Berkeley, CA 94720-1460, USA
- J.P. Omtvedt
- University of Oslo, 0315 Oslo, Norway
- G.K. Pang
- Lawrence Berkeley National Laboratory, Berkeley, CA 94720-8169, USA
- D. Renisch
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany
- D. Rudolph
- Lund University, 22100 Lund, Sweden
- J. Runke
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- L.G. Sarmiento
- Universidad Nacional de Colombia, Bogotá D.C. 111321, Colombia
- M. Schädel
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany; Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
- H. Schaffner
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- B. Schausten
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- A. Semchenkov
- University of Oslo, 0315 Oslo, Norway
- J. Steiner
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- P. Thörle-Pospiech
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany; Helmholtz Institute Mainz, 55099 Mainz, Germany
- N. Trautmann
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany
- A. Türler
- University of Bern, 3012 Bern, Switzerland; Paul Scherrer Institute, 5232 Villigen, Switzerland
- J. Uusitalo
- University of Jyväskylä, 40014 Jyväskylä, Finland
- D. Ward
- Lund University, 22100 Lund, Sweden
- M. Wegrzecki
- Institute of Electron Technology, 02-668 Warsaw, Poland
- P. Wieczorek
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- N. Wiehl
- Johannes Gutenberg University Mainz, 55099 Mainz, Germany
- A. Yakushev
- GSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, Germany
- V. Yakusheva
- Helmholtz Institute Mainz, 55099 Mainz, Germany
- Journal volume & issue
-
Vol. 784
pp. 199 – 205
Abstract
The isotopic distribution of nuclei produced in the 50Ti + 249Cf reaction has been studied at the gas-filled recoil separator TASCA at GSI Darmstadt, which separates ions according to differences in magnetic rigidity. The bombardment was performed at an energy around the Bass barrier and with the TASCA magnetic fields set for collecting fusion-evaporation reaction products. Fifty-three isotopes located “north-east” of 208Pb were identified as recoiling products formed in non-fusion channels of the reaction. These recoils were implanted with energies in two distinct ranges; besides one with higher energy, a significant low-energy contribution was identified. The latter observation was not expected to occur according to kinematics of the known types of reactions, namely quasi-elastic, multi-nucleon transfer, deep-inelastic collisions or quasifission. The present observations are discussed within the framework of two-body kinematics passing through the formation of a composite system. Keywords: Production of radioactive nuclei, α decay, Multi-nucleon transfer reactions, Quasifission
