ISSN:
1434-601X
Keywords:
PACS. 21.10.Dr Binding energies and masses – 21.60.Jz Hartree-Fock and random-phase approximations – 27.70.+q 150 ?A? 189 – 27.80.+w 190 ?A? 219
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract: Recent mass measurements show a substantial weakening of the binding-energy difference δ2p(Z, N) = E(Z - 2, N) - 2E(Z, N) + E(Z + 2, N) in the neutron-deficient Pb isotopes. As δ2p is often attributed to the size of the proton magic gap, it might be speculated that reduction in δ2p is related to a weakening of the spherical Z = 82 shell. We demonstrate that the observed trend is described quantitatively by self-consistent mean-field models in terms of deformed ground states of Hg and Po isotopes.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1140/epja/iepja1320
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