Attempt to confirm superheavy element production in the {sup 48}Ca+{sup 238}U reaction
Abstract
An attempt to confirm production of superheavy elements in the reaction of {sup 48}Ca beams with actinide targets has been performed using the {sup 238}U({sup 48}Ca,3n){sup 283}112 reaction. Two {sup 48}Ca 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 {alpha} 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.
- Authors:
-
- Nuclear Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331 (United States)
- Physics Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
- Department of Chemistry, Hallym University, Chuncheon 200-702 (Korea, Republic of)
- Department of Chemistry, Uppsala University, SE-751 05 Uppsala (Sweden)
- Labor fuer Radio- und Umweltchemie, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)
- Department of Chemistry, University of Oslo, NO-0316 Oslo (Norway)
- Department of Chemistry, University of California, Berkeley, California 94720 (United States)
- Publication Date:
- OSTI Identifier:
- 20698835
- Resource Type:
- Journal Article
- Journal Name:
- Physical Review. C, Nuclear Physics
- Additional Journal Information:
- Journal Volume: 72; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevC.72.014605; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS; ALPHA DECAY; CALCIUM 48 REACTIONS; CROSS SECTIONS; ELEMENT 112; HEAVY ION FUSION REACTIONS; SPONTANEOUS FISSION; URANIUM 238 TARGET
Citation Formats
Gregorich, K E, Sudowe, R, Loveland, W, Sprunger, P, Peterson, D, Zielinski, P M, Nelson, S L, Duellmann, Ch E, Folden, III, C M, Hoffman, D C, Wilson, R E, Nitsche, H, Department of Chemistry, University of California, Berkeley, California 94720, Chung, Y H, Aleklett, K, Eichler, R, Soverna, S, Departement fuer Chemie und Biochemie, Universitaet Bern, CH-3012 Bern, Omtvedt, J P, Pang, G K, Schwantes, J M, and Isotope and Nuclear Chemistry, Los Alamos National Laboratory, Los Alamos, New Mexico 87545. Attempt to confirm superheavy element production in the {sup 48}Ca+{sup 238}U reaction. United States: N. p., 2005.
Web. doi:10.1103/PhysRevC.72.014605.
Gregorich, K E, Sudowe, R, Loveland, W, Sprunger, P, Peterson, D, Zielinski, P M, Nelson, S L, Duellmann, Ch E, Folden, III, C M, Hoffman, D C, Wilson, R E, Nitsche, H, Department of Chemistry, University of California, Berkeley, California 94720, Chung, Y H, Aleklett, K, Eichler, R, Soverna, S, Departement fuer Chemie und Biochemie, Universitaet Bern, CH-3012 Bern, Omtvedt, J P, Pang, G K, Schwantes, J M, & Isotope and Nuclear Chemistry, Los Alamos National Laboratory, Los Alamos, New Mexico 87545. Attempt to confirm superheavy element production in the {sup 48}Ca+{sup 238}U reaction. United States. https://doi.org/10.1103/PhysRevC.72.014605
Gregorich, K E, Sudowe, R, Loveland, W, Sprunger, P, Peterson, D, Zielinski, P M, Nelson, S L, Duellmann, Ch E, Folden, III, C M, Hoffman, D C, Wilson, R E, Nitsche, H, Department of Chemistry, University of California, Berkeley, California 94720, Chung, Y H, Aleklett, K, Eichler, R, Soverna, S, Departement fuer Chemie und Biochemie, Universitaet Bern, CH-3012 Bern, Omtvedt, J P, Pang, G K, Schwantes, J M, and Isotope and Nuclear Chemistry, Los Alamos National Laboratory, Los Alamos, New Mexico 87545. 2005.
"Attempt to confirm superheavy element production in the {sup 48}Ca+{sup 238}U reaction". United States. https://doi.org/10.1103/PhysRevC.72.014605.
@article{osti_20698835,
title = {Attempt to confirm superheavy element production in the {sup 48}Ca+{sup 238}U reaction},
author = {Gregorich, K E and Sudowe, R and Loveland, W and Sprunger, P and Peterson, D and Zielinski, P M and Nelson, S L and Duellmann, Ch E and Folden, III, C M and Hoffman, D C and Wilson, R E and Nitsche, H and Department of Chemistry, University of California, Berkeley, California 94720 and Chung, Y H and Aleklett, K and Eichler, R and Soverna, S and Departement fuer Chemie und Biochemie, Universitaet Bern, CH-3012 Bern and Omtvedt, J P and Pang, G K and Schwantes, J M and Isotope and Nuclear Chemistry, Los Alamos National Laboratory, Los Alamos, New Mexico 87545},
abstractNote = {An attempt to confirm production of superheavy elements in the reaction of {sup 48}Ca beams with actinide targets has been performed using the {sup 238}U({sup 48}Ca,3n){sup 283}112 reaction. Two {sup 48}Ca 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 {alpha} 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.},
doi = {10.1103/PhysRevC.72.014605},
url = {https://www.osti.gov/biblio/20698835},
journal = {Physical Review. C, Nuclear Physics},
issn = {0556-2813},
number = 1,
volume = 72,
place = {United States},
year = {Fri Jul 01 00:00:00 EDT 2005},
month = {Fri Jul 01 00:00:00 EDT 2005}
}
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