skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Superheavy nuclei and quasi-atoms produced in collisions of transuranium ions

Abstract

Low energy collisions of very heavy nuclei ({sup 238}U+{sup 238}U, {sup 232}Th+{sup 250}Cf, and {sup 238}U+{sup 248}Cm) have been studied within the realistic dynamical model based on multidimensional Langevin equations. Large charge and mass transfer was found to result from the 'inverse quasi-fission' process leading to the formation of the surviving superheavy long-lived neutron-rich nuclei. In many events, the lifetime of the composite system consisting of two touching nuclei turns out to be rather long; sufficiently long for the spontaneous formation of positrons to occur from a super-strong electric field - a fundamental QED process.

Authors:
 [1]; ;  [2];  [3]
  1. Flerov Laboratory of Nuclear Reactions, JINR, Dubna, Moscow Region (Russian Federation)
  2. Flerov Laboratory of Nuclear Reaction, JINR, Dubna (Russian Federation)
  3. Frankfurt Institute for Advanced Studies, J.W. Goethe-Universitaet, Frankfurt (Germany)
Publication Date:
OSTI Identifier:
20771315
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. C, Nuclear Physics; Journal Volume: 73; Journal Issue: 3; Other Information: DOI: 10.1103/PhysRevC.73.031602; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; CALIFORNIUM 250; CALIFORNIUM 250 TARGET; CURIUM 248; CURIUM 248 TARGET; ELECTRIC FIELDS; LIFETIME; MASS TRANSFER; NEUTRON-RICH ISOTOPES; POSITRONS; QUANTUM ELECTRODYNAMICS; QUASI-FISSION; THORIUM 232; THORIUM 232 REACTIONS; URANIUM 238; URANIUM 238 REACTIONS; URANIUM 238 TARGET

Citation Formats

Zagrebaev, V.I., Oganessian, Yu.Ts., Itkis, M.G., and Greiner, Walter. Superheavy nuclei and quasi-atoms produced in collisions of transuranium ions. United States: N. p., 2006. Web. doi:10.1103/PhysRevC.73.031602.
Zagrebaev, V.I., Oganessian, Yu.Ts., Itkis, M.G., & Greiner, Walter. Superheavy nuclei and quasi-atoms produced in collisions of transuranium ions. United States. doi:10.1103/PhysRevC.73.031602.
Zagrebaev, V.I., Oganessian, Yu.Ts., Itkis, M.G., and Greiner, Walter. Wed . "Superheavy nuclei and quasi-atoms produced in collisions of transuranium ions". United States. doi:10.1103/PhysRevC.73.031602.
@article{osti_20771315,
title = {Superheavy nuclei and quasi-atoms produced in collisions of transuranium ions},
author = {Zagrebaev, V.I. and Oganessian, Yu.Ts. and Itkis, M.G. and Greiner, Walter},
abstractNote = {Low energy collisions of very heavy nuclei ({sup 238}U+{sup 238}U, {sup 232}Th+{sup 250}Cf, and {sup 238}U+{sup 248}Cm) have been studied within the realistic dynamical model based on multidimensional Langevin equations. Large charge and mass transfer was found to result from the 'inverse quasi-fission' process leading to the formation of the surviving superheavy long-lived neutron-rich nuclei. In many events, the lifetime of the composite system consisting of two touching nuclei turns out to be rather long; sufficiently long for the spontaneous formation of positrons to occur from a super-strong electric field - a fundamental QED process.},
doi = {10.1103/PhysRevC.73.031602},
journal = {Physical Review. C, Nuclear Physics},
number = 3,
volume = 73,
place = {United States},
year = {Wed Mar 15 00:00:00 EST 2006},
month = {Wed Mar 15 00:00:00 EST 2006}
}