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Have superheavy elements been produced in nature?

  • I. Petermann
  • K. Langanke
  • G. Martínez-Pinedo
  • I. V. Panov
  • P. -G. Reinhard
  • F. -K. Thielemann
Regular Article - Theoretical Physics

Abstract

We discuss the possibility whether superheavy elements can be produced in Nature by the astrophysical rapid neutron capture process. To this end we have performed fully dynamical network r-process calculations assuming an environment with neutron-to-seed ratio large enough to produce superheavy nuclei. Our calculations include two sets of nuclear masses and fission barriers and include all possible fission channels and the associated fission yield distributions. Our calculations produce superheavy nuclei with \(\ensuremath A\approx 300\) that however decay on time scales of days.

Keywords

Heavy Nucleus Neutron Capture Superheavy Nucleus Superheavy Element Neutron Separation Energy 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© SIF, Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  • I. Petermann
    • 1
  • K. Langanke
    • 2
    • 3
    • 4
  • G. Martínez-Pinedo
    • 2
    • 3
  • I. V. Panov
    • 5
    • 6
  • P. -G. Reinhard
    • 7
  • F. -K. Thielemann
    • 5
  1. 1.Argelander-Institut für AstronomieUniversität BonnBonnGermany
  2. 2.GSI Helmholtzzentrum für SchwerionenforschungDarmstadtGermany
  3. 3.Technische Universität DarmstadtInstitut für KernphysikDarmstadtGermany
  4. 4.Frankfurt Institute for Advanced StudiesFrankfurtGermany
  5. 5.Department of PhysicsUniversity of BaselBaselSwitzerland
  6. 6.Institute for Theoretical and Experimental PhysicsMoscowRussia
  7. 7.Institut für Theoretische Physik IIUniversität Erlangen-NürnbergErlangenGermany

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