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http://hdl.handle.net/11154/1327
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Title: | An upper limit of ground-state energy fluctuations in nuclear masses |
Authors: | Hirsch, JG Frank, A Barea, J Van Isacker, P Zuker, AP Velázquez, VM |
Issue Date: | 2006 |
Abstract: | Shell model calculations are employed to estimate an upper limit of statistical fluctuations in the nuclear ground-state energies. In order to mimic the presence of quantum chaos associated with neutron resonances at energies between 6 and 10MeV, calculations include random interactions in the upper shells. The upper bound for the energy fluctuations at mid-shell is shown to have the form sigma(A) approximate to 20 A(-1.34) MeV. This estimate is consistent with the mass errors found in large-shell model calculations along the N = 126 line, and with local mass error estimated using the Garvey-Kelson relations, all being smaller than 100keV. It agrees in both size and functional form with the fluctuations deduced independently from second-order perturbation theory. |
URI: | http://hdl.handle.net/11154/1327 |
ISSN: | 0031-8949 |
Appears in Collections: | Física
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