Theoretical and experimental {alpha} decay half-lives of the heaviest odd-Z elements and general predictions

Journal Article · Mon Oct 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.047304· OSTI ID:21067853

Zhang, H F ^[1]; Royer, G ^[2]

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1. School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000 (China)
2. Laboratoire Subatech, UMR: IN2P3/CNRS-Universite-Ecole des Mines, 4 rue A. Kastler, F-44307 Nantes Cedex 03 (France)

Theoretical {alpha} decay half-lives of the heaviest odd-Z nuclei are calculated using the experimental Q{sub {alpha}} value. The barriers in the quasimolecular shape path are determined within a Generalized Liquid Drop Model (GLDM) and the WKB approximation is used. The results are compared with calculations using the Density-Dependent M3Y (DDM3Y) effective interaction and the Viola-Seaborg-Sobiczewski (VSS) formulas. The calculations provide consistent estimates for the half-lives of the {alpha} decay chains of these superheavy elements. The experimental data stand between the GLDM calculations and VSS ones in the most time. Predictions are provided for the {alpha} decay half-lives of other superheavy nuclei within the GLDM and VSS approaches using the recent extrapolated Q{sub {alpha}} of Audi, Wapstra, and Thibault [Nucl. Phys. A729, 337 (2003)], which may be used for future experimental assignment and identification.

• OSTI ID: 21067853
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
HALF-LIFE
HEAVY NUCLEI
LIQUID DROP MODEL
NUCLEON-NUCLEON INTERACTIONS
ODD-EVEN NUCLEI
ODD-ODD NUCLEI
TRANSACTINIDE ELEMENTS
WKB APPROXIMATION