Abstract
Double mass differences between nuclei having a magic number of protons (neutrons) and their neighbors differing by one or two protons (neutrons) have been calculated on the basis of a semimicroscopic model that has been proposed recently for the problem of nuclear pairing. A dominant term of the effective nucleonnucleon interaction has been calculated on the basis of the realistic Argonne nucleon-nucleon potential v18. It has been supplemented with a moderately small phenomenological term that contains one universal parameter common to protons and neutrons. Double mass differences have been calculated for proton neighbors of the lead-isotope chain (Z = 82) and for neutron neighbors of N = 82 isotones. Corrections to the model that are caused by the contribution of low-lying surface vibrations (phonons) have been estimated.
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Original Russian Text © N.V. Gnezdilov, E.E. Saperstein, 2012, published in Pis’ma v Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2012, Vol. 95, No. 12, pp. 683–688.
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Gnezdilov, N.V., Saperstein, E.E. Calculation of double mass differences for near-magic nuclei on the basis of a semimicroscopic model. Jetp Lett. 95, 603–608 (2012). https://doi.org/10.1134/S0021364012120053
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DOI: https://doi.org/10.1134/S0021364012120053