{alpha}-decay lifetime in superheavy nuclei with A>282

Journal Article · Tue Apr 15 00:00:00 EDT 2008 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.77.047302· OSTI ID:21189949

Bhattacharya, Madhubrata; Gangopadhyay, G ^[1]

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1. Department of Physics, University of Calcutta 92, Acharya Prafulla Chandra Road, Kolkata-700 009 (India)

Nuclei with A>282 have been studied in the relativistic mean field approach using the force FSU Gold and a zero range pairing interaction. The Euler-Lagrange equations have been solved in the coordinate space. The {alpha}-nucleus potential has been constructed with the density-dependent M3Y interaction (DDM3Y1), which has an exponential density dependence, in the double folding model using the nucleon densities in the daughter nucleus and the {alpha} particle. Half-lives of {alpha} decay have been calculated for tunneling of the {alpha} particle through the potential barrier in the WKB approximation and assuming a constant preformation probability. The resulting values agree well with experimental measurements.

• OSTI ID: 21189949
• Journal Information: Physical Review. C, Nuclear Physics, Vol. 77, Issue 4; Other Information: DOI: 10.1103/PhysRevC.77.047302; (c) 2008 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ALPHA DECAY
ALPHA PARTICLES
ATOMIC NUMBER
DAUGHTER PRODUCTS
DENSITY
FOLDING MODEL
HALF-LIFE
HEAVY NUCLEI
LAGRANGE EQUATIONS
LIFETIME
MEAN-FIELD THEORY
NUCLEONS
PAIRING INTERACTIONS
RELATIVISTIC RANGE
SIMULATION
TRANSACTINIDE ELEMENTS
TUNNEL EFFECT
WKB APPROXIMATION