{alpha} decay as a probe of nuclear incompressibility
- Department of Physics, Faculty of Science, Cairo University, Giza 12613 (Egypt)
This study is focused on probing the incompressibility of nuclear matter. Calculations are employed in the framework of the superasymmetric fission model of {alpha} decay for 182 radioactive nuclei, including the recently produced isotopes of superheavy elements, to probe nuclear incompressibility and its isospin dependence through the use of an effective density-dependent nucleon-nucleon force. The microscopic {alpha}-daughter nuclear interaction potential is calculated by double folding the density distributions of both {alpha} and daughter nuclei with a realistic effective density-dependent M3Y force that is modified to consider the effect of incompressibility in the case of total overlapped densities inside the barrier. The microscopic Coulomb potential is calculated by folding the charge density distributions of the two interacting nuclei. The minimum angular momentum transfer required for the spin-parity conservation is considered. The half-lives of the different {alpha} decays have been calculated within the WKB approximation. The obtained values for nuclear matter incompressibility range between 205 and 255 MeV for the most studied cases which have an isospin asymmetry range of {delta}=0.033 to 0.228. For the same isospin asymmetry, the incompressibility values of the even(N)-even(Z) nuclei are found to be the highest, while those of the odd-odd nuclei are the lowest. The estimated symmetric nuclear matter incompressibility deduced from the results obtained for different asymmetric nuclei is K{sub 0}({delta}=0)=241.28 MeV.
- OSTI ID:
- 20863774
- Journal Information:
- Physical Review. C, Nuclear Physics, Vol. 74, Issue 3; Other Information: DOI: 10.1103/PhysRevC.74.034302; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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