corner
corner
APS » Journals » Phys. Rev. C » Volume 72 » Issue 1
< Previous Article | Next Article >

Phys. Rev. C 72, 014605 (2005) [7 pages]

Attempt to confirm superheavy element production in the 48Ca+238U reaction

Download: PDF (189 kB) Buy this article Export: BibTeX or EndNote (RIS)

K. E. Gregorich1, W. Loveland2, D. Peterson3, P. M. Zielinski1,4, S. L. Nelson1,4, Y. H. Chung5, Ch. E. Düllmann1,4, C. M. Folden III1,4, K. Aleklett6, R. Eichler7,8, D. C. Hoffman1,4, J. P. Omtvedt9, G. K. Pang4, J. M. Schwantes4,10, S. Soverna7,8, P. Sprunger2, R. Sudowe1, R. E. Wilson1,4, and H. Nitsche1,4
1Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA
2Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, USA
3Physics Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
4Department of Chemistry, University of California, Berkeley, California 94720, USA
5Department of Chemistry, Hallym University, Chuncheon, Korea 200-702
6Department of Chemistry, Uppsala University, SE-751 05 Uppsala, Sweden
7Labor für Radio- und Umweltchemie, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland
8Departement für Chemie und Biochemie, Universität Bern, CH-3012 Bern, Switzerland
9Department of Chemistry, University of Oslo, NO-0316 Oslo, Norway
10Isotope & Nuclear Chemistry, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA

Received 24 March 2005; published 14 July 2005

An attempt to confirm production of superheavy elements in the reaction of 48Ca beams with actinide targets has been performed using the 238U(48Ca,3n)283112 reaction. Two 48Ca projectile energies were used that spanned the energy range where the largest cross sections have been reported for this reaction. No spontaneous fission events were observed. No α decay chains consistent with either reported or theoretically predicted element 112 decay properties were observed. The cross-section limits reached are significantly smaller than the recently reported cross sections.

© 2005 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevC.72.014605
DOI:
10.1103/PhysRevC.72.014605
PACS:
25.70.Jj, 27.90.+b
 
< Previous Article | Next Article >